Let $A=\{1,2,3,4\}$ and $B=\{1,4,9,16\}$. If $f: A \rightarrow B$, then number of many-one functions from $A$ to $B$ are [JEE Main 2025]

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Let \(A=\{1,2,3,4\}\) and \(B=\{1,4,9,16\}\). If \(f: A \rightarrow B\), then number of many-one functions from \(A\) to…