If set A has 4 elements and B = {5, 6}, then the number of elements in A x B are
9
7
10
8
Let A and B are finite sets if n(A) = p and n(B) = q, then
n(A x B) = pq
Hence, number of elements in A x B = 4 x 2 = 8.
If set A has 10 elements and set B has 4 elements, number of elements in set A × B is _____.
If set A has p element and set B has q elements, then the number of element in set (A × B) is _____.