Question

If A = {1, 2,3} And B= {31, 21} , then n (A×B ) is​

Answer 1

Answer:

ok...,...............

Answer 2

number of elements in set A=n(A)

=2

number of elements in set B=n(B)

=2

2n(A)*n(B)

2*2

2

4

2

answer is 16