Compute the volume of the solid formed by revolving

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20.Compute the volume of the solid formed by revolving the region bounded by 2yxand2xyabout (a) the
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26.Let Rbe the region bounded by 2yxand y= 4. Compute the volume of the solid formed by revolving Rabout the given line.(a)y= 4(b) the y-axis(c) y= 6(d) y= –2(e) x= 2(f) x= –4
32.Suppose that the circle 221xyis revolved about the y-axis. Show that the volume of the resulting solid is .
4.Sketch the region, draw in a typical shell, identify the radius and height of the shell, andcompute the volume for the region bounded by ,,yx yx and 1,xrevolved about1x.

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