Question:medium

Let $A$ and $B$ be two sets having $m$ and $n$ elements respectively, then total number of functions from $A$ to $B$ are

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Always remember the structure: $\text{Total Functions} = (\text{Size of Codomain})^{(\text{Size of Domain})}$.
Here, codomain $B$ has $n$ elements and domain $A$ has $m$ elements, so the answer is $n^m$.
Updated On: Jul 29, 2026
  • $m^n$
  • $n^m$
  • $m$
  • $n$
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The Correct Option is B

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