Question

U = {1, 2, 3, 7, 8, 9, 10, 11, 12}
P = {1, 3, 7, 10}
then, Verify (P')' = P​

Answer 1

Answer:

P`=U-P={2,8,9,11,12}

(P')'=U-P'={1,3,7,10}