∣1112N−1213N−131∣\begin{vmatrix} 1 & 1 & 1 \\ 2^{N-1} & 2 & 1 \\ 3^{N-1} & 3 & 1 \end{vmatrix}12N−13N−1123111
asked by guest on Apr 04, 2025 at 10:13 am
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