Integrateover the region between the circlesand.

So the integration itself is fine using the quotient rule, but how do I use the circles to get the limits of integration?

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- Nov 24th 2009, 02:38 PMUnenlightenedIntegrating within a circle?
**Integrate****over the region between the circles****and**.

So the integration itself is fine using the quotient rule, but how do I use the circles to get the limits of integration? - Nov 24th 2009, 02:45 PMJameson
This problem works great in polar coordinates, but I think you made a typo because as written the numerator and denominator are the same.

EDIT: I see you already noticed this.

Ok, so in polar coordinates and the area of . So now you need to express the region in terms of polar coordinates, which should be easy since is a circle with radius a.