Question

If U = {x I x ∈ N, x < 5}, A = {x I x ∈ N, x ≤ 2} then A'= ______
(a) {I, 2}
(b) {1, 2, 3, 4, 5}
(c) {3, 4}
(d) {3, 4, 5}

Answer 1

the answer is (a) {1,2}