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Homework Help: Volume of revolution at line x=-4

  1. Feb 12, 2010 #1
    1. The problem statement, all variables and given/known data

    Find the volume of the solid obtained by rotating the region bounded by the curves y=0,y=sin(6x),x=6,x=0 about the axis x=−4.

    2. Relevant equations

    cylindrical method? circumference*thickness*height

    3. The attempt at a solution

    So I'm not sure how to write the integral when it rotates along the line x=-4 ..would it be like 2*pi*(-4+x)dx*sin(6x)? or 2*pi*(4-x)dx*sin(6x)? Or something completely different?
  2. jcsd
  3. Feb 12, 2010 #2
    Nevermind..I got it!
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