Calculate the region

Calculate the region




Hi all, I am having a problem with this question.



I need to calculate ? ? y dA with D being the region on the right side of the y axis. The equation given is 1 <= x^2+y^2 <= 4. I have put this into some math programs and can see the region but am having some issues actually setting up the double integral to do on paper. Any help is appreciated!



Thanks





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