1. Let R be the region bounded by the following curves. Let S be the solid generated when R is revolved about the given axis. Ifpossible, find the volume of S by both thedisk/washer and shell methods. Check that your results agree.

y= x-x^10 , y=0 ; revolved about the axis

Set up theintegral(s) that gives the volume of the solid as a single integral if possible using thedisk/washer method, if it is possible to do so. Use increasing limits of integration. Select the correct choice below and fill in any answer boxes within your choice.

2.Let R be the region bounded by the following curves. Let S be the solid generated when R is revolved about the given axis. Ifpossible, find the volume of S by both thedisk/washer and shell methods. Check that your results agree.

y= 1/x+1 , y= 1-x/20revolved about thex-axis

Set up theintegral(s) that gives the volume of the solid as a single integral if possible using thedisk/washer method. Use increasing limits of integration. Select the correct choice below and fill in any answer boxes within your choice.