Solving an Integral Question: A Step-by-Step Explanation

[transgalactic]

i added in the link the question and how i tried to solve itmy questios is the bottom integral ignore the top one

http://img138.imageshack.us/my.php?image=img8138yq2.jpg

 

[Feldoh]

Integrate by parts again and solve for int of e^2x*cos x dx

 

[transgalactic]

wow nice trick