Question

If $R$ is a relation from a finite set $A$ having $m$ elements to a finite set $B$ having $n$ elements, then the number of relation from $A$ to $B$ is.

• A. $2^{mn}$
• B. $2^{mn}-1$
• C. $2mn$
• D. $m^n$

Answer 1

The correct option is A $2^{mn}$

The number of relations will be

$2^{n_1\times n_2}$

$=2^{mn}$