Question

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

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

Answer 1

The correct option is D $m^n$

$m\times m\times m---n\text{turns}$

$\Rightarrow m^n$