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Need help with this.

- April 28th 2010, 05:22 PMasdf122345Convert an integral from Cartesian to Polar coordinates and evaluate it.
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Need help with this. - April 29th 2010, 08:58 AMAmer
Attachment 16611

lets convert the boundaries

r changes from 0 to

and theta from 0 to pi/2 the first quarter so

becomes

- April 29th 2010, 03:12 PMasdf122345
Is it possible to integrate where you left off? I can't figure out how to integrate that. Or does it get messy from integrating from that.

- April 29th 2010, 10:07 PMAmer

first integral convert

second one sub

can you continue ? - April 30th 2010, 10:46 AMasdf122345
Yea I got it from here. Thanks

- April 30th 2010, 01:13 PMasdf122345
I got 4 pi as the answer. Is that correct? Something seems wrong.

- April 30th 2010, 01:19 PMshenanigans87
The answer is

So you may have just made a small error by a factor of 2.