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via algebra.com's RSS system. These lessons are listed with newest lessons first. - OVERVIEW of lessons on arithmetic word problems in Numeric_Fractions, by ikleyn(49985)
Seen 949 times.
- Entertainment arithmetic word problems solved in a right way in Numeric_Fractions, by ikleyn(49985)
Seen 332 times.
- Simple arithmetic problems to solve by a backward method in Numeric_Fractions, by ikleyn(49985)
Seen 816 times.
- Real life arithmetic problems in Numeric_Fractions, by ikleyn(49985)
Seen 724 times.
- Clock hands arithmetic word problems in Numeric_Fractions, by ikleyn(49985)
Seen 626 times.
- Arithmetic word problems solved using fractions in Numeric_Fractions, by ikleyn(49985)
Seen 895 times.
- Simple problems on filling or emptying a pool or a reservoir in Numeric_Fractions, by ikleyn(49985)
Seen 982 times.
- Simple arithmetic word problems solved in a right way in Numeric_Fractions, by ikleyn(49985)
Seen 799 times.
- Solving arithmetic word problems by reasoning in Numeric_Fractions, by ikleyn(49985)
Seen 925 times.
- ALGEBRA-I - YOUR ONLINE TEXTBOOK in Quadratic_Equations, by ikleyn(49985)
Seen 16507 times.
- OVERVIEW of my lessons from the Finance section in this site in Finance, by ikleyn(49985)
Seen 187 times.
- Amortizing a debt on a credit card in Finance, by ikleyn(49985)
Seen 146 times.
- Mortgage problems in Finance, by ikleyn(49985)
Seen 162 times.
- Loan problems in Finance, by ikleyn(49985)
Seen 178 times.
- Variable withdrawals from a compounded account (sinking fund) in Finance, by ikleyn(49985)
Seen 205 times.
- Annual depositing and semi-annual compounding in ordinary annuity saving plan in Finance, by ikleyn(49985)
Seen 128 times.
- Ordinary annuity account with non-zero initial deposit as a combined total of two accounts in Finance, by ikleyn(49985)
Seen 149 times.
- Regular withdrawals from an annuity payout account in Finance, by ikleyn(49985)
Seen 201 times.
- Find future value for an Annuity Due saving plan in Finance, by ikleyn(49985)
Seen 167 times.
- Find a value of regular deposits for an Ordinary Annuity saving plan in Finance, by ikleyn(49985)
Seen 205 times.
- Find future value of an Ordinary Annuity saving plan in Finance, by ikleyn(49985)
Seen 205 times.
- Problems on continuously compounded accounts in Finance, by ikleyn(49985)
Seen 138 times.
- Problems on discretely compounded accounts in Finance, by ikleyn(49985)
Seen 160 times.
- Problems on simple interest accounts in Finance, by ikleyn(49985)
Seen 149 times.
- OVERVIEW of lessons on plotting and analyzing functions in Coordinate-system, by ikleyn(49985)
Seen 393 times.
- Miscellaneous problems on plots of functions in Coordinate-system, by ikleyn(49985)
Seen 366 times.
- Finding inverse functions in Coordinate-system, by ikleyn(49985)
Seen 241 times.
- Constructing a function based on its given properties in Coordinate-system, by ikleyn(49985)
Seen 413 times.
- Writing a function rule for a function based on its wording description in Coordinate-system, by ikleyn(49985)
Seen 204 times.
- Describe transformations from the given parent function to final function in Coordinate-system, by ikleyn(49985)
Seen 203 times.
- Write a function which is a result of given transformations of the parent function in Coordinate-system, by ikleyn(49985)
Seen 234 times.
- The domain and the range of transformed functions in Coordinate-system, by ikleyn(49985)
Seen 882 times.
- Do not fall into a TRAP when analyzing problems on trigonometric functions in Coordinate-system, by ikleyn(49985)
Seen 89 times.
- Analyzing periodic trigonometric functions for the amplitude, the period, vertical and horizontal shifts in Coordinate-system, by ikleyn(49985)
Seen 454 times.
- HOW TO PLOT transformed periodic trigonometry functions in Coordinate-system, by ikleyn(49985)
Seen 355 times.
- HOW TO write functions for transformed plots in Coordinate-system, by ikleyn(49985)
Seen 436 times.
- HOW TO PLOT transformed functions in Coordinate-system, by ikleyn(49985)
Seen 440 times.
- Compressing and stretching graphs in Coordinate-system, by ikleyn(49985)
Seen 387 times.
- Finding x-intercepts and y-intercepts in Coordinate-system, by ikleyn(49985)
Seen 439 times.
- OVERVIEW of lessons on proportions in Proportions, by ikleyn(49985)
Seen 2358 times.
- Entertainment problems on proportions in Proportions, by ikleyn(49985)
Seen 499 times.
- Selected problems on proportions from the archive in Proportions, by ikleyn(49985)
Seen 1487 times.
- Problems on proportions for mental solution in Proportions, by ikleyn(49985)
Seen 1240 times.
- Advanced problems on proportions in Proportions, by ikleyn(49985)
Seen 611 times.
- Using proportions to solve some nice simple Travel and Distance problems in Proportions, by ikleyn(49985)
Seen 96 times.
- Using proportions to solve word problems in Geometry in Proportions, by ikleyn(49985)
Seen 418 times.
- HOW TO algebraize and solve these problems using proportions in Proportions, by ikleyn(49985)
Seen 2666 times.
- Using proportions to estimate the number of fish in a lake in Proportions, by ikleyn(49985)
Seen 3453 times.
- Typical problems on proportions in Proportions, by ikleyn(49985)
Seen 1182 times.
- Using proportions to solve Chemistry problems in Proportions, by ikleyn(49985)
Seen 10157 times.
- Using proportions to solve word problems in Physics in Proportions, by ikleyn(49985)
Seen 20507 times.
- Using proportions to solve word problems in Proportions, by ikleyn(49985)
Seen 23236 times.
- Proportions in Proportions, by ikleyn(49985)
Seen 7273 times.
- OVERVIEW of miscellanious solved problems on divisibility of integer numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1784 times.
- Nice entertainment problems related to divisibility properties in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 705 times.
- Math Circle level problem on lockers and divisors of integer numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 991 times.
- Find a triangle with integer side lengths and integer area in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 285 times.
- Two-digit numbers with digit "9" in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 291 times.
- Find the sum of digits of integer numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 200 times.
- Miscellaneous problems on divisibility numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 724 times.
- How many integers of the form n^2 + 18n + 13 are perfect squares in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 615 times.
- Solving Diophantine equations in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1122 times.
- Find the last two digits of the number 3^123 + 7^123 + 9^123 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 737 times.
- Find the last three digits of these numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1547 times.
- What is the last digit of the number a^n ? in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 722 times.
- Why 3^n + 7^n - 2 is divisible by 8 for all positive integer n ? in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 306 times.
- Find the remainder of division in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 365 times.
- How many integer numbers in the range 1-300 are divisible by at least one of the integers 4, 6 and 15 ? in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 764 times.
- How many 3-digit numbers are not divisible by 2; not divisible by 3; not divisible by either 2 or 3 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 2603 times.
- How many three-digit numbers are multiples of both 5 and 7? in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 379 times.
- Problems on divisors of a given number in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1477 times.
- Composite number of the form (4n+3) must have a prime divisor of the form (4n+3) in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 762 times.
- Proving an equation has no integer solutions in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 3732 times.
- Quadratic polynomial with odd integer coefficients can not have a rational root in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 2083 times.
- Solving equations in integer numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 463 times.
- Relatively prime numbers help to solve problems in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1562 times.
- Finding Greatest Common Divisor of integer numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1020 times.
- Introductory problems on divisibility of integer numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1358 times.
- The number which gives remainder 4 when divided by 7, remainder 5 when divided by 8 and remainder 6 when divided by 9 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 610 times.
- The number that leaves a remainder 1 when divided by 2, by 3, by 4, by 5 and so on until 9 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 4054 times.
- Light flashes on a Christmas tree and a Least Common Multiple in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 821 times.
- OVERVIEW of Divisibility rules by 2, 3, 4, 5, 6, 9, 10 and 11 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 3475 times.
- Math circle level problem on finding remainders in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 876 times.
- Math circle level problem on restoring digit in the product of two 16-digit numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1031 times.
- Math circle level problems on divisibility numbers in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 485 times.
- Can there be a perfect square ? in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1410 times.
- Restore the omitted digit in a number in a way that the number is divisible by 11 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1675 times.
- Restore the omitted digit in a number in a way that the number is divisible by 9 in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 1678 times.
- Divisibility by 11 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 11403 times.
- Divisibility by 10 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 2435 times.
- Divisibility by 9 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 5379 times.
- Divisibility by 6 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 2737 times.
- Divisibility by 5 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 3637 times.
- Divisibility by 4 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 3351 times.
- Divisibility by 3 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 2726 times.
- Divisibility by 2 rule in Divisibility_and_Prime_Numbers, by ikleyn(49985)
Seen 2904 times.
- OVERVIEW of my lessons on solving equations containing radicals in Radicals, by ikleyn(49985)
Seen 554 times.
- Solving systems of equations containing radicals in Radicals, by ikleyn(49985)
Seen 85 times.
- Advanced problems on solving equations containing radicals in Radicals, by ikleyn(49985)
Seen 424 times.
- HOW TO solve equations containing radicals in Radicals, by ikleyn(49985)
Seen 10051 times.
- OVERVIEW of lessons on finding the minimum/maximum of a quadratic function in Quadratic_Equations, by ikleyn(49985)
Seen 1581 times.
- Advanced lesson on finding minima of (x+1)(x+2)(x+3)(x+4) in Quadratic_Equations, by ikleyn(49985)
Seen 2931 times.
- Minimal distance between sailing ships in a sea in Quadratic_Equations, by ikleyn(49985)
Seen 829 times.
- Find the point on a given straight line closest to a given point in the plane in Quadratic_Equations, by ikleyn(49985)
Seen 586 times.
- When is the best time to sell a pig ? in Quadratic_Equations, by ikleyn(49985)
Seen 1108 times.
- Using quadratic functions to solve problems on maximizing revenue/profit in Quadratic_Equations, by ikleyn(49985)
Seen 20079 times.
- Finding the maximum area of the window of a special form in Quadratic_Equations, by ikleyn(49985)
Seen 1213 times.
- A rancher planning to fence two adjacent rectangular corrals to enclose the maximal area in Quadratic_Equations, by ikleyn(49985)
Seen 4690 times.
- A farmer planning to fence a rectangular area along the river to enclose the maximal area in Quadratic_Equations, by ikleyn(49985)
Seen 6397 times.
- A farmer planning to fence a rectangular garden to enclose the maximal area in Quadratic_Equations, by ikleyn(49985)
Seen 4164 times.
- A rectangle with a given perimeter which has the maximal area is a square in Quadratic_Equations, by ikleyn(49985)
Seen 5566 times.
- Briefly on finding the vertex of a parabola in Quadratic_Equations, by ikleyn(49985)
Seen 1464 times.
- HOW TO complete the square to find the vertex of a parabola in Quadratic_Equations, by ikleyn(49985)
Seen 1734 times.
- Briefly on finding the minimum/maximum of a quadratic function in Quadratic_Equations, by ikleyn(49985)
Seen 2688 times.
- HOW TO complete the square to find the minimum/maximum of a quadratic function in Quadratic_Equations, by ikleyn(49985)
Seen 10506 times.
- OVERVIEW of lessons on solving quadratic equations in Quadratic_Equations, by ikleyn(49985)
Seen 2298 times.
- Entertainment problems on quadratic equations in Quadratic_Equations, by ikleyn(49985)
Seen 302 times.
- HOW TO solve the problem on quadratic equation mentally and avoid boring calculations in Quadratic_Equations, by ikleyn(49985)
Seen 2946 times.
- Rare beauty investment problem to solve using quadratic equation in Quadratic_Equations, by ikleyn(49985)
Seen 709 times.
- Business-related problems to solve them using quadratic equations in Quadratic_Equations, by ikleyn(49985)
Seen 727 times.
- Challenging word problems solved using quadratic equations in Quadratic_Equations, by ikleyn(49985)
Seen 2832 times.
- Word problems on engineering constructions of parabolic shapes in Quadratic_Equations, by ikleyn(49985)
Seen 170 times.
- Using quadratic equations to solve word problems in Quadratic_Equations, by ikleyn(49985)
Seen 93206 times.
- Using Vieta's theorem to solve quadratic equations and related problems in Quadratic_Equations, by ikleyn(49985)
Seen 2449 times.
- Who is who in quadratic equations in Quadratic_Equations, by ikleyn(49985)
Seen 3772 times.
- Solving quadratic equations without quadratic formula in Quadratic_Equations, by ikleyn(49985)
Seen 21479 times.
- HOW TO solve quadratic equation by completing the square - Learning by examples in Quadratic_Equations, by ikleyn(49985)
Seen 1380 times.
- HOW TO complete the square - Learning by examples in Quadratic_Equations, by ikleyn(49985)
Seen 1592 times.
- PROOF of quadratic formula by completing the square in Quadratic_Equations, by ichudov(507)
Seen 40677 times.
- Introduction into Quadratic Equations in Quadratic_Equations, by ichudov(507)
Seen 100500 times.
- OVERVIEW of lessons on Evaluating expressions in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1633 times.
- Advanced evaluating problems in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1035 times.
- Math circle level problems on evaluating expressions in Evaluation_Word_Problems, by ikleyn(49985)
Seen 354 times.
- Upper level problem on evaluating an expression of polynomial roots in Evaluation_Word_Problems, by ikleyn(49985)
Seen 131 times.
- Finding coefficients of decomposition of a rational function in Evaluation_Word_Problems, by ikleyn(49985)
Seen 184 times.
- Upper league problem on evaluating the sum in Evaluation_Word_Problems, by ikleyn(49985)
Seen 209 times.
- Math Olympiad level problem on evaluating a 9-degree polynomial in Evaluation_Word_Problems, by ikleyn(49985)
Seen 326 times.
- Math circle level problems on finding polynomials with prescribed roots in Evaluation_Word_Problems, by ikleyn(49985)
Seen 905 times.
- Evaluating a function defined by functional equation in Evaluation_Word_Problems, by ikleyn(49985)
Seen 275 times.
- Find the number of factorable quadratic polynomials of special form in Evaluation_Word_Problems, by ikleyn(49985)
Seen 346 times.
- Lowering a degree method in Evaluation_Word_Problems, by ikleyn(49985)
Seen 442 times.
- Miscellaneous evaluating problems in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1017 times.
- Evaluate the sum of the coefficients of a polynomial in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1880 times.
- Evaluating trigonometric expressions in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1023 times.
- Problems on evaluating in Geometry in Evaluation_Word_Problems, by ikleyn(49985)
Seen 109 times.
- Solving equations that contain infinitely many radicals in Evaluation_Word_Problems, by ikleyn(49985)
Seen 811 times.
- Evaluating expressions that contain infinitely many square roots in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1048 times.
- Advanced problems on Vieta's theorem in Evaluation_Word_Problems, by ikleyn(49985)
Seen 2978 times.
- Problems on Vieta's formulas in Evaluation_Word_Problems, by ikleyn(49985)
Seen 2346 times.
- HOW TO evaluate functions of roots of a cubic and quartic equation in Evaluation_Word_Problems, by ikleyn(49985)
Seen 2640 times.
- HOW TO evaluate functions of roots of a quadratic equation in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1552 times.
- Advanced lesson on evaluating expressions in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1290 times.
- HOW TO evaluate expressions involving x + 1/x, x^2 + 1/x^2, x^3 + 1/x^3 and x^5 + 1/x^5 in Evaluation_Word_Problems, by ikleyn(49985)
Seen 1774 times.
- ALGEBRA-II - YOUR ONLINE TEXTBOOK in Complex_Numbers, by ikleyn(49985)
Seen 9944 times.
- OVERVIEW of lessons on Probability, section 3 in Probability-and-statistics, by ikleyn(49985)
Seen 138 times.
- Probability problems similar to a coinciding birthdays problem in Probability-and-statistics, by ikleyn(49985)
Seen 109 times.
- Probability poblems on long chains of related events in Probability-and-statistics, by ikleyn(49985)
Seen 136 times.
- Upper League geometric probability problems in Probability-and-statistics, by ikleyn(49985)
Seen 136 times.
- Upper league problems on conditional probability in Probability-and-statistics, by ikleyn(49985)
Seen 175 times.
- Upper league problem to maximize winning in a game with 20-sided rolling die in Probability-and-statistics, by ikleyn(49985)
Seen 197 times.
- Upper league probability problems on Stars and Bars methodology in Probability-and-statistics, by ikleyn(49985)
Seen 195 times.
- Upper league entertainment probability problems in Probability-and-statistics, by ikleyn(49985)
Seen 182 times.
- Advanced probability problems related to combinations in Probability-and-statistics, by ikleyn(49985)
Seen 229 times.
- Probabilistic analysis of testing procedures in industry in Probability-and-statistics, by ikleyn(49985)
Seen 196 times.
- Probabilistic analysis of testing procedures in health care in Probability-and-statistics, by ikleyn(49985)
Seen 244 times.
- Binomial distribution problems on overbooking flights in Probability-and-statistics, by ikleyn(49985)
Seen 155 times.
- Advanced binomial distribution problems in Probability-and-statistics, by ikleyn(49985)
Seen 383 times.
- A company bids on two separate contracts in Probability-and-statistics, by ikleyn(49985)
Seen 252 times.
- Probabilistic analysis of a court verdicts in Probability-and-statistics, by ikleyn(49985)
Seen 266 times.
- OVERVIEW of lessons on logarithms, logarithmic equations and relevant word problems in logarithm, by ikleyn(49985)
Seen 3874 times.
- Upper level problems on solving logarithmic equations in logarithm, by ikleyn(49985)
Seen 175 times.
- Entertainment problems on exponential growth in logarithm, by ikleyn(49985)
Seen 1056 times.
- Entertainment problems on logarithms in logarithm, by ikleyn(49985)
Seen 1126 times.
- Entertainment problem: Uninterrupted withdrawing money from a retirement fund in logarithm, by ikleyn(49985)
Seen 499 times.
- Tricky problem on solving a logarithmic system of equations in logarithm, by ikleyn(49985)
Seen 851 times.
- Problems on continuously compound accounts in logarithm, by ikleyn(49985)
Seen 1596 times.
- Problems on discretely compound accounts in logarithm, by ikleyn(49985)
Seen 1682 times.
- Miscellaneous problems on exponential growth/decay in logarithm, by ikleyn(49985)
Seen 608 times.
- Inflation and Salary problems in logarithm, by ikleyn(49985)
Seen 1465 times.
- Problems on appreciated/depreciated values in logarithm, by ikleyn(49985)
Seen 1365 times.
- A medication decay in a human's body in logarithm, by ikleyn(49985)
Seen 770 times.
- Bacteria growth problems in logarithm, by ikleyn(49985)
Seen 9432 times.
- Carbon dating problems in logarithm, by ikleyn(49985)
Seen 5153 times.
- Radioactive decay problems in logarithm, by ikleyn(49985)
Seen 5496 times.
- Population growth problems in logarithm, by ikleyn(49985)
Seen 2273 times.
- Solving problem on Newton Law of cooling in logarithm, by ikleyn(49985)
Seen 3151 times.
- Using logarithms to solve real world problems in logarithm, by ikleyn(49985)
Seen 73804 times.
- Solving logarithmic inequalities in logarithm, by ikleyn(49985)
Seen 1674 times.
- Proving equalities with logarithms in logarithm, by ikleyn(49985)
Seen 1278 times.
- Solving really interesting and educative problem on logarithmic equation containing a HUGE underwater stone in logarithm, by ikleyn(49985)
Seen 140 times.
- Solving advanced logarithmic equations in logarithm, by ikleyn(49985)
Seen 1384 times.
- Solving logarithmic equations in logarithm, by ikleyn(49985)
Seen 9823 times.
- Simplifying expressions with logarithms in logarithm, by ikleyn(49985)
Seen 1258 times.
- Evaluate logarithms without using a calculator in logarithm, by ikleyn(49985)
Seen 1562 times.
- Change of Base Formula for logarithms in logarithm, by ikleyn(49985)
Seen 13254 times.
- Properties of the logarithm in logarithm, by ikleyn(49985)
Seen 21005 times.
- WHAT IS the logarithm in logarithm, by ikleyn(49985)
Seen 8952 times.
- OVERVIEW of lessons on the Method of Mathematical induction in Sequences-and-series, by ikleyn(49985)
Seen 1117 times.
- Proving inequalities by the method of Mathematical Induction in Sequences-and-series, by ikleyn(49985)
Seen 18749 times.
- Mathematical induction for sequences other than arithmetic or geometric in Sequences-and-series, by ikleyn(49985)
Seen 5776 times.
- Mathematical induction and geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 11750 times.
- Mathematical induction and arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 14537 times.
- OVERVIEW of lessons on geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 2903 times.
- Miscellaneous problems on retirement plans in Sequences-and-series, by ikleyn(49985)
Seen 2447 times.
- Withdrawing a certain amount of money periodically from a compounded saving account in Sequences-and-series, by ikleyn(49985)
Seen 1334 times.
- Finding present value of an annuity, or an equivalent amount in today's dollars in Sequences-and-series, by ikleyn(49985)
Seen 718 times.
- Solved problems on Ordinary Annuity saving plans in Sequences-and-series, by ikleyn(49985)
Seen 3136 times.
- Annuity Due saving plans and geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 5983 times.
- Ordinary Annuity saving plans and geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 4978 times.
- Entertainment problems on geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 848 times.
- Fresh, sweet and crispy problem on arithmetic and geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 1411 times.
- One characteristic property of geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 4606 times.
- Word problems on geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 12359 times.
- Solved problems on geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 2295 times.
- Problems on geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 25620 times.
- The proofs of the formulas for geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 3527 times.
- Geometric progressions in Sequences-and-series, by ikleyn(49985)
Seen 12922 times.
- OVERVIEW of lessons on arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 3719 times.
- Entertainment problems on arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 519 times.
- Problems on arithmetic progressions solved MENTALLY in Sequences-and-series, by ikleyn(49985)
Seen 742 times.
- Math Olympiad level problems on arithmetic progression in Sequences-and-series, by ikleyn(49985)
Seen 3545 times.
- Interior angles of a polygon and Arithmetic progression in Sequences-and-series, by ikleyn(49985)
Seen 793 times.
- Advanced problems on arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 1126 times.
- Inserting arithmetic means between given numbers in Sequences-and-series, by ikleyn(49985)
Seen 564 times.
- Finding number of terms of an arithmetic progression in Sequences-and-series, by ikleyn(49985)
Seen 740 times.
- Calculating partial sums of arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 765 times.
- Solved problems on arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 2712 times.
- One characteristic property of arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 5768 times.
- Increments of a quadratic function form an arithmetic progression in Sequences-and-series, by ikleyn(49985)
Seen 4248 times.
- Uniformly accelerated motions and arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 4642 times.
- Free fall and arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 7003 times.
- Chocolate bars and arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 7677 times.
- Word problems on arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 49225 times.
- Problems on arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 30013 times.
- The proofs of the formulas for arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 19388 times.
- Arithmetic progressions in Sequences-and-series, by ikleyn(49985)
Seen 32479 times.
- OVERVIEW of lessons on Miscellaneous adavanced Geometry problems in Geometry_Word_Problems, by ikleyn(49985)
Seen 1231 times.
- Nice entertainment Geometry problems in Geometry_Word_Problems, by ikleyn(49985)
Seen 829 times.
- Triangle Inequality Theorem in Triangles, by math_tutor2020(3057)
Seen 178 times.
- OVERVIEW of lessons on percentage problems in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 4636 times.
- Business-related entertainment problem on percentage in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 1315 times.
- Buying price, selling price and profit percentage problems in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 1690 times.
- Compounded interest percentage problems in percentage, by ikleyn(49985)
Seen 3863 times.
- Simple interest percentage problems in percentage, by ikleyn(49985)
Seen 3340 times.
- Problems on percentage that lead to unexpected results in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 3891 times.
- Percentage problems on chains of discounts in percentage, by ikleyn(49985)
Seen 1917 times.
- Advanced problems on percentage in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 3949 times.
- More complicated percentage problems in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 6127 times.
- Simple percentage problems in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 2608 times.
- Percentage word problems (Type 3 problems, Finding the Base) in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 141279 times.
- Percentage word problems (Type 2 problems, Finding the Rate) in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 46702 times.
- Percentage word problems (Type 1 problems, Finding the Part) in Percentage-and-ratio-word-problems, by ikleyn(49985)
Seen 39144 times.
- Percentage problems in percentage, by ikleyn(49985)
Seen 42735 times.
- OVERVIEW of additional lessons on Travel and Distance in Travel_Word_Problems, by ikleyn(49985)
Seen 872 times.
- Upper league Travel and Distance problems in Travel_Word_Problems, by ikleyn(49985)
Seen 201 times.
- Olympiad level problems on Travel and Distance in Travel_Word_Problems, by ikleyn(49985)
Seen 214 times.
- Advanced Travel and Distance problems for bodies traveling toward each other in Travel_Word_Problems, by ikleyn(49985)
Seen 205 times.
- Moving escalator problems in Travel_Word_Problems, by ikleyn(49985)
Seen 978 times.
- Two ships traveling on parallel courses in a foggy day in Travel_Word_Problems, by ikleyn(49985)
Seen 1028 times.
- How the state patrol officers on a highway could detect the driver exceeded the speed limit in Travel_Word_Problems, by ikleyn(49985)
Seen 653 times.
- One unusual Upstream and Downstream Travel problem in Travel_Word_Problems, by ikleyn(49985)
Seen 576 times.
- How many mail trucks will a mail truck meet on its trip in Travel_Word_Problems, by ikleyn(49985)
Seen 1109 times.
- Miles per gallon effectiveness and moving car in Travel_Word_Problems, by ikleyn(49985)
Seen 746 times.
- One entertainment problem on Time equation in Travel_Word_Problems, by ikleyn(49985)
Seen 438 times.
- Time equation: HOW TO use, HOW TO write and HOW TO solve it in Travel_Word_Problems, by ikleyn(49985)
Seen 1105 times.
- Earthquake waves in Travel_Word_Problems, by ikleyn(49985)
Seen 983 times.
- The buses and a traveler in Travel_Word_Problems, by ikleyn(49985)
Seen 777 times.
- One very twisted Travel and Distance problem in Travel_Word_Problems, by ikleyn(49985)
Seen 548 times.
- Two cars and a train make a race in Travel_Word_Problems, by ikleyn(49985)
Seen 616 times.
- HOW TO algebreze and to solve these non-traditional Travel and Distance problems in Travel_Word_Problems, by ikleyn(49985)
Seen 1627 times.
- Short problems on Travel and Distance for quick mental solution in Travel_Word_Problems, by ikleyn(49985)
Seen 722 times.
- Unexpectedly simple solutions to standard catching up problems in Travel_Word_Problems, by ikleyn(49985)
Seen 551 times.
- Unusual catching-up problem in Travel_Word_Problems, by ikleyn(49985)
Seen 955 times.
- Two runners on a circular track in Travel_Word_Problems, by ikleyn(49985)
Seen 6658 times.
- In a 2-mile race competition in Travel_Word_Problems, by ikleyn(49985)
Seen 986 times.
- Two runners run on a quarter-mile oval track in Travel_Word_Problems, by ikleyn(49985)
Seen 626 times.
- A rabbit and a dog in Travel_Word_Problems, by ikleyn(49985)
Seen 1014 times.
- Climbing a coconut tree up and down in Travel_Word_Problems, by ikleyn(49985)
Seen 689 times.
- A child is running on a moving sidewalk in an airport in Travel_Word_Problems, by ikleyn(49985)
Seen 730 times.
- OVERVIEW of lessons on Travel and Distance in Travel_Word_Problems, by ikleyn(49985)
Seen 7798 times.
- Entertainment Travel and Distance problems in Travel_Word_Problems, by ikleyn(49985)
Seen 849 times.
- The Doppler Shift in Travel_Word_Problems, by ikleyn(49985)
Seen 1227 times.
- The distance covered by a free falling body during last second of the fall in Travel_Word_Problems, by ikleyn(49985)
Seen 4724 times.
- Non-traditional Travel and Distance problems in Travel_Word_Problems, by ikleyn(49985)
Seen 1362 times.
- A rower going on a river who missed the bottle of whiskey under a bridge in Travel_Word_Problems, by ikleyn(49985)
Seen 1354 times.
- A man crossing a bridge and a train coming from behind in Travel_Word_Problems, by ikleyn(49985)
Seen 3996 times.
- A train passing another train in Travel_Word_Problems, by ikleyn(49985)
Seen 3044 times.
- A light-rail train passing a walking person in Travel_Word_Problems, by ikleyn(49985)
Seen 1285 times.
- A train passing through a tunnel in Travel_Word_Problems, by ikleyn(49985)
Seen 4254 times.
- A train passing a platform in Travel_Word_Problems, by ikleyn(49985)
Seen 1998 times.
- A train passing a telegraph post and passing a bridge in Travel_Word_Problems, by ikleyn(49985)
Seen 1791 times.
- Problems on bodies moving on a circle in Travel_Word_Problems, by ikleyn(49985)
Seen 1671 times.
- Advanced clock problems in Travel_Word_Problems, by ikleyn(49985)
Seen 3611 times.
- Clock problems in Travel_Word_Problems, by ikleyn(49985)
Seen 15039 times.
- One more problem on calculating an average speed in Travel_Word_Problems, by ikleyn(49985)
Seen 1693 times.
- Calculating an average speed: a train going from A to B and back in Travel_Word_Problems, by ikleyn(49985)
Seen 3914 times.
- A person walking along the street and buses traveling in the same and opposite directions in Travel_Word_Problems, by ikleyn(49985)
Seen 1547 times.
- Travel problems on a messenger moving back and forth along the marching army's column in Travel_Word_Problems, by ikleyn(49985)
Seen 2940 times.
- Another unusual Travel problem (Arnold's problem on two walking old women) in Travel_Word_Problems, by ikleyn(49985)
Seen 10115 times.
- One unusual Travel problem in Travel_Word_Problems, by ikleyn(49985)
Seen 3108 times.
- How far do you live from school? in Travel_Word_Problems, by ikleyn(49985)
Seen 2485 times.
- Had a car move faster it would arrive sooner in Travel_Word_Problems, by ikleyn(49985)
Seen 2075 times.
- Selected Travel and Distance problems from the archive in Travel_Word_Problems, by ikleyn(49985)
Seen 1829 times.
- Selected problems from the archive on a plane flying with and against the wind in Travel_Word_Problems, by ikleyn(49985)
Seen 1836 times.
- Selected problems from the archive on the boat floating Upstream and Downstream in Travel_Word_Problems, by ikleyn(49985)
Seen 3726 times.
- Unpowered raft floating downstream along a river in Travel_Word_Problems, by ikleyn(49985)
Seen 2357 times.
- Wind and Current problems solvable by quadratic equations in Travel_Word_Problems, by ikleyn(49985)
Seen 17789 times.
- More problems on upstream and downstream round trips in Travel_Word_Problems, by ikleyn(49985)
Seen 4488 times.
- Wind and Current problems in Travel_Word_Problems, by ikleyn(49985)
Seen 80327 times.
- Using fractions to solve Travel problems in Numeric_Fractions, by ikleyn(49985)
Seen 4729 times.
- Typical catching up Travel and Distance problems in Travel_Word_Problems, by ikleyn(49985)
Seen 8060 times.
- Travel and Distance problems for two bodies moving in opposite directions in Travel_Word_Problems, by ikleyn(49985)
Seen 4889 times.
- Travel and Distance problems in Travel_Word_Problems, by ikleyn(49985)
Seen 54078 times.
- OVERVIEW of lessons on Permutations and Combinations in Permutations, by ikleyn(49985)
Seen 3646 times.
- Nice recreational problems of Combinatorics in Permutations, by ikleyn(49985)
Seen 906 times.
- One combinatorial Geometry problem solved using the Euler formula in Permutations, by ikleyn(49985)
Seen 379 times.
- Men and women standing in line in Permutations, by ikleyn(49985)
Seen 681 times.
- Stars and bars method for Combinatorics problems in Permutations, by ikleyn(49985)
Seen 1584 times.
- In how many ways N distinguishable objects can be distributed among n different boxes ? in Permutations, by ikleyn(49985)
Seen 1349 times.
- Derangement problems in Permutations, by ikleyn(49985)
Seen 1051 times.
- Inclusion-Exclusion principle problems in Permutations, by ikleyn(49985)
Seen 1455 times.
- Some twisted combinatorics problem in Permutations, by ikleyn(49985)
Seen 1124 times.
- Miscellaneous problems on permutations, combinations and other combinatoric entities in Permutations, by ikleyn(49985)
Seen 1177 times.
- Fundamental counting principle problems in Permutations, by ikleyn(49985)
Seen 1730 times.
- Combinatoric problems for entities other than permutations and combinations in Permutations, by ikleyn(49985)
Seen 1430 times.
- Persons sitting around a cicular table in Permutations, by ikleyn(49985)
Seen 4537 times.
- Arranging elements of sets containing indistinguishable elements in Permutations, by ikleyn(49985)
Seen 2073 times.
- Math circle level problem on Combinations in Permutations, by ikleyn(49985)
Seen 1124 times.
- Problems on Combinations with restrictions in Permutations, by ikleyn(49985)
Seen 1552 times.
- Problems on Combinations in Permutations, by ikleyn(49985)
Seen 6758 times.
- PROOF of the formula on the number of Combinations in Permutations, by ikleyn(49985)
Seen 30455 times.
- Introduction to Combinations in Permutations, by ikleyn(49985)
Seen 8872 times.
- Math circle level problem on Permutations in Permutations, by ikleyn(49985)
Seen 1304 times.
- Problems on Permutations with restrictions in Permutations, by ikleyn(49985)
Seen 1218 times.
- Special type permutations problems in Permutations, by ikleyn(49985)
Seen 1925 times.
- Simple and simplest problems on permutations in Permutations, by ikleyn(49985)
Seen 6492 times.
- PROOF of the formula on the number of Permutations in Permutations, by ikleyn(49985)
Seen 26705 times.
- Introduction to Permutations in Permutations, by ikleyn(49985)
Seen 14552 times.
- OVERVIEW of lessons on parabolas in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 3992 times.
- Practical problems from the archive related to ellipses and parabolas in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 2294 times.
- Optical property of a parabola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 7670 times.
- Tangent lines and normal vectors to a parabola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 8048 times.
- Parabola focal property in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 3690 times.
- Parabola definition, canonical equation, characteristic points and elements in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 9920 times.
- OVERVIEW of lessons on hyperbolas in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 3283 times.
- Identify elements of a hyperbola given by its general equation in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1885 times.
- Transform general equation of a hyperbola to the standard form by completing the square in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1586 times.
- General equation of a hyperbola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1213 times.
- Find the standard equation of a hyperbola given by its elements in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 723 times.
- Identify elements of hyperbola given by its standard equation in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1139 times.
- Standard equation of a hyperbola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 904 times.
- Optical property of a hyperbola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 10549 times.
- Tangent lines and normal vectors to a hyperbola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 5229 times.
- Hyperbola focal property in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 5011 times.
- Hyperbola definition, canonical equation, characteristic points and elements in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 5959 times.
- OVERVIEW of lessons on ellipses in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 3914 times.
- Astronomic applications in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 329 times.
- Identify elements of a circle given by its general equation in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 801 times.
- Transform general equation of a circle to the standard form by completing the squares in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1440 times.
- General equation of a circle in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1275 times.
- Find the standard equation of a circle in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1349 times.
- Standard equation of a circle in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 909 times.
- Identify elements of an ellipse given by its general equation in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1065 times.
- Transform a general equation of an ellipse to the standard form by completing the square in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 5512 times.
- General equation of an ellipse in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1441 times.
- Find the standard equation of an ellipse given by its elements in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1487 times.
- Identify elements of an ellipse given by its standard equation in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 2043 times.
- Standard equation of an ellipse in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 1208 times.
- Optical property of an ellipse revisited in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 3235 times.
- Optical property of an ellipse in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 8725 times.
- Tangent lines and normal vectors to an ellipse in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 24976 times.
- Tangent lines and normal vectors to a circle in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 18006 times.
- Ellipse focal property in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 7512 times.
- Ellipse definition, canonical equation, characteristic points and elements in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 9563 times.
- A circle of maximum radius tangent to and inscribed in parabola in Quadratic-relations-and-conic-sections, by ikleyn(49985)
Seen 125 times.
- GEOMETRY - YOUR ONLINE TEXTBOOK in Triangles, by ikleyn(49985)
Seen 7349 times.
- Find a triangle with integer side lengths and integer area in Geometry_Word_Problems, by ikleyn(49985)
Seen 124 times.
- On non-existing a solution to one trisection angle problem in Geometry_Word_Problems, by ikleyn(49985)
Seen 133 times.
- Packing bottles into a box in Geometry_Word_Problems, by ikleyn(49985)
Seen 1020 times.
- Finding pyramidal frustum volume in Geometry_Word_Problems, by ikleyn(49985)
Seen 1857 times.
- Selected problems on triangles similarity in Geometry_Word_Problems, by ikleyn(49985)
Seen 743 times.
- Determine the type of a triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 924 times.
- Finding the common/shared area of two triangles in Geometry_Word_Problems, by ikleyn(49985)
Seen 853 times.
- Advanced problems on finding area of right-angled triangles in Geometry_Word_Problems, by ikleyn(49985)
Seen 776 times.
- Solving some minimax Geometry problems in Geometry_Word_Problems, by ikleyn(49985)
Seen 348 times.
- Geometric solution to one minimax problem in Geometry_Word_Problems, by ikleyn(49985)
Seen 705 times.
- Finding the distanse from a point in 3D to a plane in Geometry_Word_Problems, by ikleyn(49985)
Seen 872 times.
- Two parallel chords in intersecting circles in Geometry_Word_Problems, by ikleyn(49985)
Seen 1201 times.
- Three circles touching externally in Geometry_Word_Problems, by ikleyn(49985)
Seen 1466 times.
- A problem on a circle toushing another circle internally in Geometry_Word_Problems, by ikleyn(49985)
Seen 1305 times.
- Two circles tangent externally and touching a given straight line in Geometry_Word_Problems, by ikleyn(49985)
Seen 837 times.
- Find the volume and the dimensions of a rectangular box if the areas of its faces are given in Geometry_Word_Problems, by ikleyn(49985)
Seen 2219 times.
- Problems on surface area of a rectangular box in Geometry_Word_Problems, by ikleyn(49985)
Seen 894 times.
- The point which minimizes the sum of distances to vertices of a given quadrilateral in Geometry_Word_Problems, by ikleyn(49985)
Seen 3167 times.
- Find the side of a square if distances are given from an interior point to 3 its vertices in Geometry_Word_Problems, by ikleyn(49985)
Seen 1142 times.
- Determine the standard form equation of the circle inscribed in a triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 745 times.
- Center of the given circle is the incenter of the given triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 915 times.
- Find the perimeter of a triangle obtained by adding uniform strip to a given triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 774 times.
- Area of a triangle obtained by cutting uniform strips from the given triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 764 times.
- Finding the hypotenuse of a right-angled triangle via its two medians in Geometry_Word_Problems, by ikleyn(49985)
Seen 779 times.
- Two unit squares sharing the same center but turned (rotated) each relative the other in Geometry_Word_Problems, by ikleyn(49985)
Seen 522 times.
- Selected problems from the archive on the area of plane shapes in Geometry_Word_Problems, by ikleyn(49985)
Seen 847 times.
- Advanced problem on squares built externally on sides of an arbitrary triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 789 times.
- Advanced problem on equilateral triangles built externally on sides of an arbitrary triangle in Geometry_Word_Problems, by ikleyn(49985)
Seen 2464 times.
- Triangle with the sides ratio 4:5:6 has the smallest angle measure half of the biggest angle in Geometry_Word_Problems, by ikleyn(49985)
Seen 5637 times.
- Find the rate of moving of the tip of a shadow in Geometry_Word_Problems, by ikleyn(49985)
Seen 100 times.
- Checking Equality in Equations, by math_tutor2020(3057)
Seen 58 times.
- Truth Tables (Logic) in Conjunction, by math_tutor2020(3057)
Seen 214 times.
- Logic Rules of Inference and Replacement in Conjunction, by math_tutor2020(3057)
Seen 89 times.
- OVERVIEW of lessons on Average, Mean and Median in Average, by ikleyn(49985)
Seen 1331 times.
- The mean and the total value problem for the International Fools' day of April, 1 in Average, by ikleyn(49985)
Seen 2083 times.
- Entertainment problems on average in Average, by ikleyn(49985)
Seen 407 times.
- Math circle level problem on average in Average, by ikleyn(49985)
Seen 231 times.
- Miscellaneous problems on average values in Average, by ikleyn(49985)
Seen 1105 times.
- Solved problems on average age in Average, by ikleyn(49985)
Seen 1130 times.
- Solved problems on average scores in Average, by ikleyn(49985)
Seen 1483 times.
- Solved problems on average scores, weight, height and temperature in Average, by ikleyn(49985)
Seen 1763 times.
- WHAT IS Median in Average, by ikleyn(49985)
Seen 22245 times.
- Difference between Arithmetic mean and Geometric mean in Average, by ikleyn(49985)
Seen 85568 times.
- WHAT IS Geometric mean in Average, by ikleyn(49985)
Seen 43116 times.
- OVERVIEW of lessons on a projectile thrown/shot/launched vertically up in Travel_Word_Problems, by ikleyn(49985)
Seen 1606 times.
- Miscellaneous problems on projectiles in Quadratic_Equations, by ikleyn(49985)
Seen 492 times.
- Problems on projectile launched at an angle to horizon in Quadratic_Equations, by ikleyn(49985)
Seen 609 times.
- Problem on a projectile thrown horizontally in Quadratic_Equations, by ikleyn(49985)
Seen 596 times.
- A tangled problem on a ball thrown upward in Travel_Word_Problems, by ikleyn(49985)
Seen 303 times.
- A soccer ball - write the height equation in vertex form in Travel_Word_Problems, by ikleyn(49985)
Seen 144 times.
- A flare is launched from a life raft vertically up in Travel_Word_Problems, by ikleyn(49985)
Seen 140 times.
- Problem on a ball thrown vertically up from the top of a tower in Travel_Word_Problems, by ikleyn(49985)
Seen 1913 times.
- Problem on an arrow shot vertically upward in Travel_Word_Problems, by ikleyn(49985)
Seen 3203 times.
- Problem on a projectile moving vertically up and down in Travel_Word_Problems, by ikleyn(49985)
Seen 2676 times.
- Introductory lesson on a projectile thrown-shot-launched vertically up in Travel_Word_Problems, by ikleyn(49985)
Seen 600 times.
- Problem on a toy rocket launched vertically up from a tall platform in Travel_Word_Problems, by ikleyn(49985)
Seen 2037 times.
- OVERVIEW of lessons on calculating trig functions and solving trig equations in Trigonometry-basics, by ikleyn(49985)
Seen 1552 times.
- Trigonometry entertainment problems in Trigonometry-basics, by ikleyn(49985)
Seen 460 times.
- Math OLYMPIAD level problems on Trigonometry in Trigonometry-basics, by ikleyn(49985)
Seen 962 times.
- Solving upper-league Trigonometry equations in Trigonometry-basics, by ikleyn(49985)
Seen 361 times.
- Word problems on Trigonometric functions in Trigonometry-basics, by ikleyn(49985)
Seen 2162 times.
- Find the height in Trigonometry-basics, by ikleyn(49985)
Seen 649 times.
- Calculating the sum 1*sin(1°) + 2*sin(2°) + 3*sin(3°) + . . . + 180*sin(180°) in Trigonometry-basics, by ikleyn(49985)
Seen 610 times.
- Proving Trigonometry identities in Trigonometry-basics, by ikleyn(49985)
Seen 1644 times.
- Non-standard Trigonometry problems in Trigonometry-basics, by ikleyn(49985)
Seen 932 times.
- Truly elegant solution to one trigonometric equation in Trigonometry-basics, by ikleyn(49985)
Seen 580 times.
- Solving twisted trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 502 times.
- Miscellaneous problems on solving trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 381 times.
- Challenging problems on trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 884 times.
- Solving advanced problems on trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 1304 times.
- Solving more complicated problems on trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 1428 times.
- Solving typical problems on trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 1044 times.
- Solving simple problems on trigonometric equations in Trigonometry-basics, by ikleyn(49985)
Seen 1391 times.
- Finding the slope of the bisector to the angle formed by two given lines in a coordinate plane in Trigonometry-basics, by ikleyn(49985)
Seen 879 times.
- Solve these trigonometry problems without using a calculator in Trigonometry-basics, by ikleyn(49985)
Seen 866 times.
- Evaluating trigonometric expressions in Trigonometry-basics, by ikleyn(49985)
Seen 1455 times.
- Advanced problems on calculating trigonometric functions of angles in Trigonometry-basics, by ikleyn(49985)
Seen 1666 times.
- Calculating trigonometric functions of angles in Trigonometry-basics, by ikleyn(49985)
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- OVERVIEW of lessons on solving systems of non-linear equations in two or more unknowns in Systems-of-equations, by ikleyn(49985)
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- Solving systems of non-linear algebraic equations with symmetric functions of unknowns in Systems-of-equations, by ikleyn(49985)
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- Solving some special systems of non-linear algebraic equations in Systems-of-equations, by ikleyn(49985)
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- Math circle level problems on solving systems of non-linear equations in Systems-of-equations, by ikleyn(49985)
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- Geometric word problems that are solved using systems of non-linear equations in Systems-of-equations, by ikleyn(49985)
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- Some tricks to solve systems of non-linear algebraic equations in Systems-of-equations, by ikleyn(49985)
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- Solving typical problems on systems of non-linear equations in Systems-of-equations, by ikleyn(49985)
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- Solving systems of algebraic equations of degree 2 in Systems-of-equations, by ikleyn(49985)
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- Solving systems of algebraic equations of degree 2 and degree 1 in Systems-of-equations, by ikleyn(49985)
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- OVERVIEW of lessons on solving linear equations and word problems in one unknown in Equations, by ikleyn(49985)
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- Entertainment problems on finding three unknowns using only one equation in Equations, by ikleyn(49985)
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- Typical investment problems in Equations, by ikleyn(49985)
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- More complicated word problems to solve using a single linear equation in Equations, by ikleyn(49985)
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- Simple word problems to solve using a single linear equation in Equations, by ikleyn(49985)
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- HOW TO solve a linear equation in Equations, by ikleyn(49985)
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- OVERVIEW of lessons on using the Rational roots theorem for solving polynomial equations of high degree in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 214 times.
- Using the Rational Roots theorem to prove that a polynomial has no roots in rational numbers in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 257 times.
- Typical problems on using the Rational Roots theorem for finding zeroes of high degree polynomials in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 225 times.
- Introductory problems on the Rational Roots theorem in Polynomials-and-rational-expressions, by ikleyn(49985)
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- OVERVIEW of lessons on Divisibility of polynomial f(x) by binomial (x-a) and the Remainder theorem in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Nice_Olympiad_level_problem_on_divisibility_of_polynomials in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Finding unknown coefficients of a polynomial based on some given info about its roots in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 438 times.
- Finding unknown coefficients of a polynomial having given info about its polynomial divisors in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 739 times.
- Advanced problems on the Remainder theorem in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 923 times.
- Typical problems on the Remainder theorem in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 997 times.
- Divisibility of polynomial f(x) by a binomial (x-a) and the Remainder theorem in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 11521 times.
- OVERVIEW of lessons on solving polynomial equations of high degree in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 1480 times.
- Solving palindromic equations of the degree 4 in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Advanced factoring in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Solving polynomial equations of high degree by introducing a new variable in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 1258 times.
- Solving polynomial equations of high degree by factoring in Polynomials-and-rational-expressions, by ikleyn(49985)
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- OVERVIEW of Factoring the binomials x^n-a^n and x^n+a^n in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Factoring the binomials x^n+a^n for odd degrees in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Factoring the binomials x^n-a^n in Polynomials-and-rational-expressions, by ikleyn(49985)
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- OVERVIEW of shortcut cubic multiplication formulas in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Simplifying rational expressions with the use the shortcut multiplication formulas in Polynomials-and-rational-expressions, by ikleyn(49985)
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- The difference of cubes formula in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 8037 times.
- The sum of cubes formula in Polynomials-and-rational-expressions, by ikleyn(49985)
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- The cube of the difference formula in Polynomials-and-rational-expressions, by ikleyn(49985)
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- The cube of the sum formula in Polynomials-and-rational-expressions, by ikleyn(49985)
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- OVERVIEW of shortcut quadratic multiplication formulas in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 3406 times.
- The difference of squares formula in Polynomials-and-rational-expressions, by ikleyn(49985)
Seen 18902 times.
- The square of the difference formula in Polynomials-and-rational-expressions, by ikleyn(49985)
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- The square of the sum formula in Polynomials-and-rational-expressions, by ikleyn(49985)
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- Find an equation of a parabola passing through given points in Quadratic_Equations, by ikleyn(49985)
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- Using quadratic equations to find the dimensions of a rectangle in Quadratic_Equations, by ikleyn(49985)
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- Find a number using a quadratic equation in Quadratic_Equations, by ikleyn(49985)
Seen 286 times.
- OVERVIEW of lessons for word problems on finding numbers in Numbers_Word_Problems, by ikleyn(49985)
Seen 1258 times.
- Entertainment problems on finding numbers in Numbers_Word_Problems, by ikleyn(49985)
Seen 353 times.
- Digit problems - Find the number using systems of linear equations in Numbers_Word_Problems, by ikleyn(49985)
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- Find the numbers using system of equations in Numbers_Word_Problems, by ikleyn(49985)
Seen 1241 times.
- Find the number using quadratic equation in Numbers_Word_Problems, by ikleyn(49985)
Seen 1225 times.
- Find the number using a single linear equation in Numbers_Word_Problems, by ikleyn(49985)
Seen 1321 times.
- OVERVIEW of lessons on complex numbers in Complex_Numbers, by ikleyn(49985)
Seen 3419 times.
- Determine locus of points using complex numbers in Complex_Numbers, by ikleyn(49985)
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- A curious example of an equation in complex numbers which HAS NO a solution in Complex_Numbers, by ikleyn(49985)
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- Calculating the sum 1*sin(1°) + 2*sin(2°) + 3*sin(3°) + . . . + 180*sin(180°) in Complex_Numbers, by ikleyn(49985)
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- Proving identities using complex numbers in Complex_Numbers, by ikleyn(49985)
Seen 1182 times.
- Solved problems on de'Moivre formula in Complex_Numbers, by ikleyn(49985)
Seen 1652 times.
- Advanced problems on complex numbers in Complex_Numbers, by ikleyn(49985)
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- Miscellaneous problems on complex numbers in Complex_Numbers, by ikleyn(49985)
Seen 1769 times.
- Solving polynomial equations in complex domain in Complex_Numbers, by ikleyn(49985)
Seen 1085 times.
- Solved problem on taking square root of complex number in Complex_Numbers, by ikleyn(49985)
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- Solved problems on arithmetic operations on complex numbers in Complex_Numbers, by ikleyn(49985)
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- Derive an equation and show that the locus of points is a circle in Quadratic-relations-and-conic-sections, by ikleyn(49985)
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- Entertainment probability problems in Probability-and-statistics, by ikleyn(49985)
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- Classic problems of Elementary Geometric Probability theory in Probability-and-statistics, by ikleyn(49985)
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