Find the volume of the solid formed by revolving the region
bounded by f(x) = 2 - x2 and g(x) = 1 about the line y = 1.
Find the volume of the solid formed by revolving the region
bounded by the graphs of y =√ x and y = x2 about the x-axis.
Find the volume of the solid formed by revolving the region bounded
by the graphs of y = x2 + 1, y = 0, x = 0, and x = 1 about the y-axis.