Posted by Liz on Thursday, January 22, 2009 at 9:30pm.
I am working on this problem and having some trouble. We're supposed to use partial fractions. The problem is: integral of dx / (x^61) . I got the values of A and D, but I am having trouble with the others. Help please!

calculus  bobpursley, Thursday, January 22, 2009 at 9:47pm
I am not certian of the fractions you are using.
x^61 is a difference of two squares
(x^31)(x^3+1) Now both of those are the difference (or sum) of two cubes, which can both be factored. So you have four factors in the denominator. Frankly, I doubt if we can do much in ASCII to help you on those fractions. Notice you have a double quadratic in the denominator.
If you want a computer to assist you, put 1/(x^61) in the window here.
http://www.hostsrv.com/webmab/app1/MSP/quickmath/02/pageGenerate?site=quickmath&s1=algebra&s2=partial_fractions&s3=basic

calculus  Liz, Thursday, January 22, 2009 at 9:54pm
I did do the sum and difference of the cubes and got these as my partial fractions:
A / (x+1)
Bx + C / (x^2x+1)
D / (x1)
Ex + F / (x^2+x+1)
I got the answer for A = 1/6 and D = 1/6.
But I was having trouble with the other variables...
Answer This Question
Related Questions
 Math 141  I am having trouble with this problem. perform the indicated ...
 Calculus  I need help with this integral. w= the integral from 0 to 5 24e^6t ...
 Calc easy  Having trouble getting the correct solution. The integral of “x ...
 math  I'm having trouble solving this problem: definite integral (2t)(sqrt(t...
 Pre Calculus Repost Please Help  Can someone help me solve this problem: cos^2x...
 Physics  I'm having a bit of trouble with this problem. A ball is thrown ...
 Physics  I'm having a bit of trouble with this problem. A ball is thrown ...
 Calculus  I'm having trouble with the following problem: Find the volume of the...
 Math  The problem states that "5 to 8 is as 15 to w." I'm having some trouble ...
 Math  Hello I am having trouble with a precalculus problem. The problem is ln...
More Related Questions