Question

If Set A has 3 elements and Set B = {3, 4, 5}, then find the number of elements in the Cartesian product (A × B).

A. 9
B. 12
C. 15
D. 18

Answer 1

The number of elements in the Cartesian product (A x B) is 9.

Step-by-step explanation:

The number of elements in the Cartesian product (A x B) can be found by multiplying the number of elements in set A with the number of elements in set B. In this case, set A has 3 elements and set B has 3 elements, so the Cartesian product (A x B) will have 3 x 3 = 9 elements. Therefore, the answer is A. 9.