(a) 4 dA, where D = [-3, 1] x [1, 4] = {(x, y) : -3

(a) (b) (c) 4 (1 where D 3, I] Y2 dA, where D lxl) dA, where D (Analogous question from Calculus 1: the area of the top-half of a disk -R 1 TR2. 2