# Math Help - Infinit Integrals

1. ## Infinit Integrals

I'm not very familiar with english math terminology, so I'll cut to the chase,
this has been bodering me for awhile now:

prove:

Thank you

2. Use integral by parts formula with

$u=\sin^2 x,\;dv=dx/x^2$ .

Regards.

Fernando Revilla