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Volume of a solid

  1. Feb 4, 2012 #1
    1. The problem statement, all variables and given/known data

    3. The attempt at a solution

    I dont' see why you don't take the antiderivative of pix^(1/2) which makes it

  2. jcsd
  3. Feb 4, 2012 #2


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    Because the integrand is [itex]\pi [\sqrt{x}]^2[/itex], not [itex]\pi \sqrt{x}[/itex].
  4. Feb 4, 2012 #3
    thanks. my book did a real poor job of explaining that.
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