Let R be the region enclosed by the graphs of g(x) = -2 + 3cos(x) and h(x) = 6 - 2(x - 1), the y-axis, and the vertical line x = 2, as shown in the figure above.
Find the area of R.
(b) Region R is the base of a solid. For the solid, at each x the cross section perpendicular to the x-axis has area A(x).
Find the volume of the solid.
(c) Write, but do not evaluate, an integral expression that gives the volume of the solid generated when R is rotated about the horizontal line y = 6.