Ononot — Find the determinant of A = \begin{pmatrix} 0 & 1 & 2 \\ 1 &

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Determinantsmedium

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Find the determinant of $A = \begin{pmatrix} 0 & 1 & 2 \\ 1 & 0 & 3 \\ 4 & 5 & 0 \end{pmatrix}$ by cofactor expansion along the first row.