Ononot — Find \det\begin{pmatrix} 2 & 4 & 6 \\ 1 & 2 & 3 \\ 5 & 7 & 9

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Determinantseasy

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Find $\det\begin{pmatrix} 2 & 4 & 6 \\ 1 & 2 & 3 \\ 5 & 7 & 9 \end{pmatrix}$