JT TT 3. Let the region R be bounded by f(x) = cos x, g(x) = sin x, and x = IT/2, for - SXS -. Revolve R about y = -1 to create a solid. Find 4 2 the volume of the solid using a. [6 pts] vertical strips of thickness Ax. State the area of a slice and the volume of a slab as functions of x. b. [6 pts] horizontal strips of thickness Ay. State the area of a slice and the volume of a slab as functions of y. V2 3 IT 4