Questions on Algebra: Trigonometry answered by real tutors!

Algebra -> Algebra -> Trigonometry-basics -> Questions on Algebra: Trigonometry answered by real tutors! Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

Algebra: Trigonometry

Solvers

Lessons

Problems, free tutors

Quiz

In Depth

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 1838: I was given the question to find the angles,
Sin^2 theta = 2cos theta + 2
So I get
1-cos^2 theta = 2cos theta + 2
I think putting this into Ax^2 + Bx +C = 0 would work but is this
Cos^2T + 2CosT +1 = 0
And then plug into quadratic??

Click here to see answer by longjonsilver(2297)

Question 1880: how to factor (sin A)^3-(cos B)^3
and in this case: (sin x+cos x)(sin x-cos x) , can i take the x out or not ?
Click here to see answer by shaquana mitchell(1)

Question 2280: Hello i need help, with triganomitry. can you show me how to do it
Click here to see answer by matthew_sessoms(39)

Question 2940: Dear Sir,
Please help me in giving the solution to the foll.problem as I am a chemical engineer in doing simulation softwares
Please reply how to determine the value of THETTA in the foll.problem
((THETTA) - SIN(THETTA)) = 0.5268
Regards,
Prem.
Click here to see answer by khwang(438)

Question 2993: Dear sir,
Please help me in giving the solution to the foll.problem as I am a chemical engineer in doing simulation softwares
Please reply how to determine the value of THETTA in the foll.problem
THETTA - SIN(THETTA) = 3.4545
I had tried by using Taylor Series but i did't get the correct answer.
Please Solve that Problem and tell me any other simple method is there.
Regards,
Suresh.V

Click here to see answer by longjonsilver(2297)

Question 3441: What is the degree of an angle whose cosine is .86
Click here to see answer by Pieter(35)

Question 3545: If sin x is not equal to zero, what is the solution of csc x - (cos x)(cot x)?
What is the answer to sin (x - pi)?
Click here to see answer by longjonsilver(2297)

Question 3545: If sin x is not equal to zero, what is the solution of csc x - (cos x)(cot x)?
What is the answer to sin (x - pi)?
Click here to see answer by khwang(438)

Question 7102: Can someone tell me if this is correct. Use definitions or identities to find the exact value of the 5 remaining trig functions.
if sin = sqrt(2)/2
then:
sin = sqrt(2)/2
tan = 1
cosecant = 2/sqrt(2)
secant = 2/sqrt(2)
cotangent = 1
They just dont seem correct to me... Thanks for the help
Click here to see answer by Earlsdon(4900)

Question 7668: Can you please show me how to work this problem out?
2a+b=14
3a+b+4
(this is one problem.)
Click here to see answer by bonster(299)

Question 7668: Can you please show me how to work this problem out?
2a+b=14
3a+b+4
(this is one problem.)
Click here to see answer by glabow(165)

Question 7703: A belt passes over the rim of a flywheel, 20 inches in diameter. What is the linear speed of the belt if it drives the wheel at the rate of 50 revolutions per minute. (The speed of the belt is the same as that of a point on the rim)
Click here to see answer by prince_abubu(198)

Question 7773:

solve this equations for x and y
Click here to see answer by khwang(438)

Question 8198: if given a right triangle with the bottom line length being 8, and the hypotenuse bieng 15 how can i find the top angle (angle x)

x*
l\
l-\
l--\
l---\
l----\
l-----\)))))15 hope the drawing helps :)
l------\
l-------\
l_-------\
l_l____\
))))))8
Click here to see answer by AnlytcPhil(958)

Question 8192: The solutions of x2-7x+12=6 are
Click here to see answer by Earlsdon(4900)

Question 9263: please help me solve this equation : 2a-6-(3a+a)=10-4a

Click here to see answer by math_101(1)

Question 9954: Given the following, evaluate cos
cos= 1/2
tan is negative?
Click here to see answer by longjonsilver(2297)

Question 9951: Convert to Radians
(12 Degrees)
Click here to see answer by longjonsilver(2297)

Question 11857: how to use 'sin','cosin' and 'tangent'in triangles.
Click here to see answer by longjonsilver(2297)

Question 12096: y=3/5x+3
Click here to see answer by rapaljer(3620)

Question 13574: I cannot solve this one....
verify the identity...
cos^2(x)-sin^2(x)
----------------- = cos^2(x)
1-tan^2(x)
Click here to see answer by rahman(247)

Question 16428: sin(A+B)=?
Click here to see answer by rapaljer(3620)

Question 16422: sin(A+B)=?
Click here to see answer by venugopalramana(3286)

Question 17673: algebraically find exact values for all of the roots of the function (i.e. solve f(x)=0 for all values of x (in radians)). Give exact answers only.
f{x}=3cos^2{4x}+sin^2{4x}-cos{4x)-1
final answer: X is element________
Click here to see answer by venugopalramana(3286)

Question 17809: This problem is giving me fits
cos(13pi/12)sin(7pi/12)=
Thanks to whom ever can help.
Have a good night.
Click here to see answer by shirsenduban(10)

Question 17809: This problem is giving me fits
cos(13pi/12)sin(7pi/12)=
Thanks to whom ever can help.
Have a good night.
Click here to see answer by venugopalramana(3286)

Question 17840: verify the given identy
cos^2B-sin^2B=2cos^2B-a
Click here to see answer by venugopalramana(3286)

Question 18598: Please help me solve for X: 2[x-(3x+1)=4-2x
Click here to see answer by pwac(251)

Question 18605: I am terrible with algebraic manipulations. I need to solve the following equation for L. I do not want the answer to the question as I have the answer already from the back of the book - I simply need help in rearranging the formula to solve for L. I have the values for P2/P1, and X (I even have the value for L from the solution manual) I know I need to move cos to the other side and I should be solving for cos^-1; however, I am missing some "gene" that does not allow me to figure it out correctly. Any help you can give me would be greatly appreciated.
P2/P1 = cos^2 [(pi*L) / (2X) ]
Click here to see answer by mmm4444bot(95)

Question 18943: If f( x ) = 5x+3 and g ( x ) = x^2-3 for what val;ue of x is f( x )= g( x )?

Click here to see answer by venugopalramana(3286)

Question 19134: How do I simp 7(2x+2)-9(-1+6x)
Click here to see answer by Alwayscheerful(414)

Question 19141: How do I simp (x+2)-(x-2)-12x?
Click here to see answer by Alwayscheerful(414)

Question 19161: help simplify -(5x+5)-4+8x
Click here to see answer by Alwayscheerful(414)

Question 19160: can you show me how to simplify 11-(3x-6)+2(4x+5)-x
Click here to see answer by Alwayscheerful(414)

Question 19159: how can I simplify -(5+5)-4+8x
Click here to see answer by Alwayscheerful(414)

Question 19298: 16x^2-8x+1
Click here to see answer by xcentaur(357)

Question 19317: please help !
z^2+z-3
Click here to see answer by Alwayscheerful(414)

Question 19594: can you verify (1+ sin x +cos)^2=2(1+ sin x)(1+ cos x)
Click here to see answer by xcentaur(357)

Question 19980: i want to know all the formulas of cos
Click here to see answer by Paul(988)

Question 20027: y*y3

Click here to see answer by thesockinthecloset(1)

Question 20035: please answer my question fast i am doing my homework and i need help thank you
(3x^2)(7x^2)
Click here to see answer by elima(1433)

Question 20032: (3x^2)(7x^2)
Click here to see answer by elima(1433)

Question 20047: please help me im doing my homework can you help me on this.
(-2n)(-n^2)
Click here to see answer by elima(1433)

Question 20056: 91+24q+ -27q

Click here to see answer by mmm4444bot(95)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790