Double integral with polar coordinates
Evaluate the given integral by changing to polar coordinates.
...where D is the region bounded by the semicircle http://www.webassign.net/latexImages...a5dd9384b0.gif and the y-axis.
I do all my scrap work on a tablet, so here's what I came up with. I did all of the integration in WolframAlpha just to make sure it was correct (did it manually the first three times). What am I doing wrong?
Any help or hints would be appreciated!