# Math Help - Integral Caculation

1. ## Integral Caculation

Hi all,
Can someones suggest me how to solve this. I've tried for 1 day and no idea how to solve it.

with a is non-negative constant.
Thanks,

2. ## Re: Integral Caculation

Hey widapol.

Have you tried integration by parts? (Hint: Consider using dv = e^(-ax) and u = ln^2(1+x))