展开并化简下列行列式:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50cffc9d8d89f9434954d164430a014e.png)
__________ ;
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc8f4ff198d3d91f0d3d2bdedf541b3.png)
____________ .
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50cffc9d8d89f9434954d164430a014e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc8f4ff198d3d91f0d3d2bdedf541b3.png)
更新时间:2020-06-26 11:34:31
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【知识点】 计算二阶行列式