2. the region r is the region bounded by y = ex , the x-axis, from x = 0 to x = 1. a) setup the integral or integrals needed to find the area of r using partitions along i. the x-axis ii. the y-axis. b) using the method of disks or washers, set up the integral or integrals needed to find the volume when the region r is revolved about i. the x-axis ii. the y-axis iii. the line y = e. c) using the method of cylindrical shells, set up the integral or integrals needed to find the volume when the region r is revolved about i. the x-axis ii. the y-axis iii. the line y = e