有限数学示例

$[\begin{array}{c} 1 & 2 \\ 3 & - 4 \end{array}] [\begin{array}{c} 13 & 1 \end{array}]$

解题步骤 1

$[\begin{array}{c} 1 & 2 \\ 3 & - 4 \end{array}] [\begin{array}{c} 13 & 1 \end{array}]$

有限数学 示例