1 . 若关于
的线性方程组的增广矩阵为
,该方程组的解为
,则
的值等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f640d4c6ea2591d85488d00d13da92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb312945a38bba8f95bb992785c5651f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815908b3b62f61a58ad2d99d3052435b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
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2 . 线性方程组
的增广矩阵为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c4f1b8b812ab47a03ed163dfd0b69d.png)
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3 . 若行列式
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5245021e4ee6d2d44b0636ce0fc43abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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4 .
中3的代数余子式的值是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1881817829818d7195ab7600a14d22.png)
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名校
5 . 若
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57def89154d0c2c9f222801522f52651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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名校
6 . 给定关于实数x、y的线性方程组
,则该方程组的增广矩阵是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ed8fe24eff6c24e07ca4e2f1f7442c.png)
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名校
7 . 行列式
的值等于___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760badd0993f41480f55bb9b15450436.png)
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8 . 若矩阵
与
满足
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9511f4c7c3f6eb94f54152e67e50427c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72885b199c12c6160ab6518335e12b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9bee7a3e6a2c01e3196fd1dbe40cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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9 . 已知矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fa11c5afea44c2f3f7780f9d88ec7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4caa6735c2b232a36559290cbac96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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10 . 三阶行列式
中第3行第2列元素的代数余子式的值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa63492bd5ff39b6e158a7f0be44e1.png)
您最近一年使用:0次
2020-12-23更新
|
79次组卷
|
2卷引用:上海市新场中学2021届高三上学期第二次月考(12月)数学试题