Question

HELP integral attack!

Answer 1

What is it that you need?

Answer 2

ick

Answer 3

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

Answer 4

Hmm..

Answer 5

try u=1/x

Answer 6

already tried, it's kiiling my soul

Answer 7

you try it because the derivative is somewhere close by outside that cos( ) thingy

Answer 8

Hmm maybe something else.

Answer 9

\[\int\limits\limits_{}^{}\cos(\frac{1}{x}) \cdot \frac{1}{x^2} dx\]

Answer 10

better

Answer 11

the sub is still the same
let u=1/x

Answer 12

do you know what -du/dx=?

Answer 13

I got it! you guys rock!

Answer 14

We are glad to be of assistance, @Hipocampus