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Math Help - Volume of solids of revolution help..

  1. #1
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    Volume of solids of revolution help..

    I need help with volumes of solids of revolution.. I am given region R bounded by curves y = x + 2, and y = x^{2}.
    I tried setting it up to figure it out using the disk method, but I am not sure I got the right answer, so I just would like some help setting it up.

    O and BTW my answer I got was Pi * 16 and 1/3
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  2. #2
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    Quote Originally Posted by Manizzle View Post
    I need help with volumes of solids of revolution.. I am given region R bounded by curves y = x + 2, and y = x^{2}.
    I tried setting it up to figure it out using the disk method, but I am not sure I got the right answer, so I just would like some help setting it up.

    O and BTW my answer I got was Pi * 16 and 1/3
    The curves intersect at x = -1,\; 2

    V = \pi \int_{-1}^2 (x+2)^2 - x^4\; dx = \frac{72 \pi}{5}
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