Question

If the set A has p elements, B has q elements, then the number of elements in A × B is

• A. $p + q$
• B. $p + q + 1$
• C. $p q$
• D. $p ^ { 2 }$

Answer 1

Answer: (C)

$p q$

Answer 2

$n ( A \times B ) = p q$.