Consider the following:
x=7sqrt(sin(y)), 0 y pi,x = 0;about y = 4
(a) set up the integral for the volume V of the solid obtained by rotating the region bounded by the given curve about the specified axis.
(I got this answer correct: (Integral from 0 to pi) 2pi(4-y)(7sqrt(sin(y)) dy)
(b) Use your calculator to evaluate the integral correct to four decimal places