1) jude incorrectly simplified the expression: (1/2)^2 * 1/2*(1/2)^3

describe the mistake that jude made.

correctly simplify the expression
(1/2)^2* 2/1* (1/3)^3

Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set.a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}