Tutors Answer Your Questions about Complex Numbers (FREE)
Question 557863: two airports, one in california and one in new york, are 3000 miles apart. a plane leaving california is traveling to new york at 200 miles per hour. another leaving new york is traveling to california at 250 miles per hour. when will the two planes pass each other?
Click here to see answer by Alan3354(69443)   |
Question 560058: Corrosion in the metal surface of an airplane can be difficult to detect visually. One test used to locate it involves passing an alternating current through a small area on the plane’s surface. If the current varies from one region to another, it may indicate that corrosion is occurring. The impedance Z (or opposition to the flow of electricity) of the metal is related to the voltage V and current I by the equation, where Z, V, and I are complex numbers.
Calculate Z for the given values of V and I.
V=10+20i I=3+7i
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 563537: I have a few I am totally stuck on.
#1)2/x+3 - 2x+3/x-1 = 6x-5/x^2+2x-3
Okay so I know that the LCD here is going to be (x+3) and (x+1) but I can not figure out how to distribute it.
#2.)x^2-10/x^2-x-20 = 1 + 7/x-5
Here I have I think the LCD is (x-5) (x+4) but again am not being able to figure out how to distribute it properly.
#3)5y^(negative)2 +1=6y^(negative)1
No clue the negative exponents are really throwing me here....Thanks so much for your help
Click here to see answer by mananth(16946)  |
Question 564104: Joe has a collection of nickels and dimes that is worth $2.15. If the number of dimes was doubled and the number of nickels was increased by 28, the value of the coins would be $4.65. How many nickels and dimes does he have?
Click here to see answer by mananth(16946) |
Question 564049: Explain how complex numbers combine under the following operations:
a. Addition
b. Division
The graphical interpretation should demonstrate how to add and divide complex numbers solely using the graph of each complex number (not based upon the algebraic computation).
*** I understand the concept of ;
The standard form of complex number is ;
(a + bi) + (a + bi)
(a + a) +(bi +bi)
2a + 2bi
Or … (3 + 2i) + (1+i)
(3+1) + (2i + i) = 4 + 3i
So WHAT IS THE GRAPHICAL INTERPRETATION; demonstrate how to add and divide complex numbers solely using the graph of each complex number
Click here to see answer by richard1234(7193)  |
Question 564100: Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.
x2 = -4x – 4
Click here to see answer by richard1234(7193) |
Question 564861: Using the method of partial fractions, determine an antiderivative for this function:
(x^2 + 1) / (x^3 - x^2 - 6x)
The answer is supposed to be: -1/6 ln x + 2/3 ln | x - 3 | + 1/2 ln | x + 2 | = C
How to do this? Thank you
Click here to see answer by Earlsdon(6294) |
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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, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380
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