Question

Given the following definitions: U = {1, 2, 3, 4, 5, 6, 7} A = {1, 2, 4, 5} B = {1, 3, 5, 7} How many elements are in A' ∩ B' ?

Answer 1

AnB=(1,5) i think it may help you

Answer 2

1 I think

2 if you count the null