Question

Tea A = {4, 6, 9, 15, 20, 21 and B = {0, 15, 20, 23)
Find A U Band A B and verify that n(A) + n(B) = n(
A
20 and
B
) ( )
5.8, 9, 11, 13.15​

Answer 1

Answer:

4,6,9,15,20,21,0,23