Question

If U={123456789} A={2468} and B={2357} verify that (a) (AUB)'=A' intersect B' (a) (A intersect B)' = A'UB'​

Answer 1

Answer:

(A n B)' = A' U B'

{1,3,4,5,6,7,8,9} = {1,3,4,5,6,7,8,9}