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## Homework Statement

http://books.google.com/books?id=gR.... .Find the area of the shaded region&f=false Problem 88

## Homework Equations

equation of each circle (x-2)^2+y^2=9

(x+2)^2+y^2=9

## The Attempt at a Solution

I solve for y for the circle (x-2)^2+y^2=9 then I took the integral of that from -1 to 0. I noticed that the shape looked symmetrical so I multiplied it by 4. But when I do it algebraically and using geometry I get a different answer then when I use the calculus.

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