Question

If a={2,4,5} , b={7,8,9}, then n(a x b) is equal to

Answer 1

Answer:

Step-by-step explanation:

n(a*b)

n(a)*n(b)

3*3

9

Answer 2

If a={2,4,5} , b={7,8,9}, then n(a x b)

=n(a*b)

=n(a)*n(b)

=3*3

=9