Compute the volume of the solid formed by revolving

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18.Compute the volume of the solid formed by revolving the region bounded by 22,4yxyxabout (a) the
b. ¿¿1.411.41
20.Compute the volume of the solid formed by revolving the region bounded by 2yxand 2xyabout (a) the
26.Let Rbe the region bounded by 2yxand y= 4. Compute the volume of the solid formed by revolving Rabout the given line.4x2¿¿
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, and compute the volume for the region bounded by ,,yx yx and 1,xrevolved about 1x.

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