Question

I need help in integration.
I'll post the question below

Answer 1

\[\int\limits \frac{ 1 }{ (x^2 -1)^2 }dx\]

Answer 2

After that it's fairly easy.

Answer 3

But if you have trouble don't hesitate to ask.

Answer 4

thx man.. u mind if I give u another question ?

Answer 5

Shoot it!

Answer 6

\[\int\limits \frac{ x }{\sqrt{3-2x-x^2} }dx\]

Answer 7

Trig substitution might work

Answer 8

what would you substitute for x ?

Answer 9

Wolframalpha.com

Answer 10

ook thx again, I guess hahaha
big help

Answer 11

He used trig substitution.

Answer 12

\[\int\limits \frac{ 1 }{ x^2 + 4 } dx\]

Answer 13

out sorry, it's not x^2, but x^4

Answer 14

Use partial fraction decomposition.

Answer 15

\[\int\limits \frac{ 1 }{ x^4 + 4 } dx\]

Answer 16

how do you simplify x^4 + 4 ?

Answer 17

\[\int\limits \frac{1}{(x^2-2x+2)(x^2+2x+2)}dx\]

Answer 18

Yup, that's how it's done

Answer 19

thx guys

Answer 20

Now, you can proceed with partial fraction decomposition. As you can see, this is going to be a long and tedious problem.

Answer 21

yep thx again guys