Question 191855
A' = Everything in U not in A = {22, 24, 26, 28, 30, 31}


B' = Everything in U not in B = {21, 23, 24, 26, 27, 30, 31}




A' U B' = new set from combining A' and B' = {21, 22, 23, 24, 26, 27, 28, 30, 31}