Let U=(1,3,6,10,12,16,19,20) A={12,16,19,20} B = {1,12,20} Apply DeMorgan's Law 1 to show that (ANB)' = A'UB'. To show that (ANB)' = A'UB', first find AnB. AnB = (Type a whole number. Use a comma to separate answers as needed.) Next, find A' and B'. A' = B' = (Type whole numbers. Use a comma to separate answers as needed.) Therefore, (ANB)' = A'UB' since the roster form of both sets is. (Type a whole number. Use a comma to separate answers as needed.)