Problem 9.37. Compute the volumes (by both the slicing and the cylin- drical shells method) of the solid obtained by revolving around the line y = 1 the region between the graph of y = x3 and a: = ya for x > 0. Problem 9.38. Compute the volumes (by both the slicing and the cylin- drical shells method) of the solid obtained by revolving around the line y = 5 the region between the graph of y = :53 and a: = y3 for a: > 0. Problem 9.39. Compute the volumes (by both the slicing and the cylin- drical shells method) of the solid obtained by revolving around the line a: = 2 the region between the graph of y = x3 and a: = y3 for a: > 0