Question

. If B≤A, An B' = {1,4,5} and A U B = {1,2,3,4,5,6}, find B.​

Answer 1

B = {2 , 3 , 6}

Explanation:

B ⊆ A then B is a subset of A

Then A U B = A

B = {x∈ A / x∉B'}

= A-B'

= {2 , 3 , 6}