Does anyone know how to do this integral? I think a substituition you can use is either sin or cos but i'm not too sure.
Last edited by oxrigby; Nov 18th 2009 at 01:37 PM.
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Originally Posted by oxrigby Does anyone know how to do this integral? I think a substituition you can use is either sin or cos but i'm not too sure. Rewrite this as . Make a change of coordinates to polar.(don't forget the Jacobian) so that we get
Originally Posted by oxrigby Does anyone know how to do this integral? I think a substituition you can use is either sin or cos but i'm not too sure. Use polar coordinates!!! Here your area is the quarter circle in the first quadrant, so the bounds on are . Your circle has radius , so the bounds on are . So you're integrating which is straightforward.
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