The first one is:
The second is:
For both problems I used parts but the problems got quite ugly so I stopped. I was wondering if there are any rules or methods I am missing that would make these problems easier
I'm still having trouble on both. On the first integral I've substituted then I did parts and got stuck. On the second one I did trig sub but I get stuck when you plug the original variables back in (what does equal?). Thanks for both your help so far, but I still need a little bit more help.