1. The problem statement, all variables and given/known data Using cylindrical shells, find the volume obtained by rotating the region bounded by the given curves about the x-axis. x= (y^2) +1 x= 0 y=1 y=2 2. Relevant equations 2∏ ∫ rh 3. The attempt at a solution 2∏ ∫ from 1 to 2 (y^2) + 1 I'm not sure where to go from here. :S Please help.