Question

Let U = {1, 2, 3, 4, 5, 6, 7), A = {2, 4, 5, 6), and B = {4.5, 7). Find the set A' B'.An B' =

Answer 1

Given the set U = {1, 2, 3, 4, 5, 6, 7), A = {2, 4, 5, 6), and B = {4, 5, 7)

B' is a set that contains elements in the universal set that are not in B

Hence B' = (1, 2, 3, 6)

A n B' is a set that contains elements common to both A and B'.

Hence

A n B' = (2, 6)