Let $A=\{1,2\}$ and $B=\{3,4\}$. Then the number of subsets of $A imes B$ is

Question

Let $A=\{1,2\}$ and $B=\{3,4\}$. Then the number of subsets of $A 	imes B$ is

Professor PC Thomas Classes · Answer

$n(A 	imes B) = 2 	imes 2 = 4$. Number of subsets = $2^4 = 16$.