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**[SOLVED] Integration By Parts and Substitution**

Short background; Took Calc 1 my senior year in highschool. Got As all 4 quarters and found it quite easy. Freshman year comes around and I sign up for Calc 2. Turns out the only teacher teaching Calculus 2 for my fall and spring semester is a horrible teacher who doesn't care about his students. So I decided to wait until my Sophomore year to take Calc 2.

So fast forward; I am picking up on all the new techniques and what have you, but I keep forgetting all the old, little essential things because of that year off.

So heres the problem;

[tex]\int\pi^{\sqrt{x}}dx[/tex]

Solve using integration by parts. At the bottom of the problem my professor gave a hint saying "You may like to do a substitution first."

And I'm stumped. I haven't used substitution at all in the past 15 months.

The only substitution I can think of is [tex]{\sqrt{x}}=m[/tex], but that is of no use.

Thanks in advance. =P