Double integral in polar coordinates

[whynot314]

Homework Statement

I know I have the set up done correctly I am wondering where I went wrong because I know I cannot get zero, and I am a little worried I did my integration wrong. please help.
[PLAIN]http://i1341.photobucket.com/albums/o745/nebula-314/IMAG0107_zps3cde35a8.jpg[/PLAIN]

 

[vela]

If the answer is not supposed to be 0, your setup is wrong.