Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, 6, 8} and C = {3, 4, 5, 6}. Find:
(A’)’
A’ = U – A
((A’)’ = (U – A)’
= U – (U – A)
= A
A = {1, 2, 3, 4}