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Math Help - Integral Help

  1. #1
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    Integral Help

    Find the centroid of the plane region bounded by y = sqrt(4 - x^2) and y = 0 for x between -2 and 2.


    Basically, I begin by trying to find the area, which I do through the picture at the bottom:


    However, I get an area of 0, which I know is incorrect.
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  2. #2
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    You can use the substitution x=2sint or x=2cost
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  3. #3
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