Question

15.
IF A = {1,2,3} and B = {3,8), then (AUB)(
AB)
is equal to
1){(8,3), (8,2), (8,1), (8,8)}
1
2){(1,2), (2,2), (3,3), (8,8)}
3){(3,1), (3,2), (3,3), (3,8)}
4){(1,3), (2,3), (3,3), (8,3)}​

Answer 1

4) {(1,3), (2, 3), (3, 3), (8, 3) }