代数示例

$[\begin{array}{c} a_{11} & a_{12} \\ a_{21} & a_{22} \end{array}] + [\begin{array}{c} b_{11} & b_{12} \\ b_{21} & b_{22} \end{array}]$

解题步骤 1

加上相应元素。

$[\begin{array}{c} a_{11} + b_{11} & a_{12} + b_{12} \\ a_{21} + b_{21} & a_{22} + b_{22} \end{array}]$

代数 示例