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2 problems match “3x3 determinant”. Clear

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  1. Determinant of a 3×3 matrix ●○○○○ 10 ptsEvaluate the determinant of (21105−21−34)\begin{pmatrix}2&1&1\\0&5&-2\\1&-3&4\end{pmatrix}.
  2. Determinant of a 3×3 matrix with entries 1 to 9 ●○○○○ 10 ptsEvaluate the determinant of (234567891)\begin{pmatrix}2&3&4\\5&6&7\\8&9&1\end{pmatrix}.