Question: 1.Let R be the region bounded below by the graph of y=x^2+12 and above by the graphs of y=8x and y=24. Find the volume of

1.Let R be the region bounded below by the graph of y=x^2+12 and above by the graphs of y=8x and y=24. Find the volume of the solid obtained by revolving R about the x-axis.

2.Let R be the region bounded below by the graph of y=(x+1)/2 and above by the graphs of y=7x6 and y=206x. Find the volume of the solid obtained by revolving R about the x-axis.

3.Find the volume of the solid obtained by revolving the region bounded by y=x^2, y=0, x=0, and x=9 about the y-axis.

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