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设 | \begin{array}{lll} a_{11} & a_{12} & a_{13} \\ a_{21} & a_{22} & a_{23} \\ a_{31} & a_{32} & a_{33} \end{array} | = 1, 则 | \begin{array}{ccc} 4 a_{11} & 4 a_{21} & 4 a_{31} \\ 2 a_{11} - 3 a_{12} & 2 a_{21} - 3 a_{22} & 2 a_{31} - 3 a_{32} \\ a_{13} & a_{23} & a_{33} \end{array} |

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