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Maths-

General

Easy

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 relations from $A$ to $B$ is

$2^{m n}$
$2^{m n} - 1$
$2 m n$
$m^{n}$

The correct answer is: $m to the power of n end exponent$

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