1 . 方程组
的增广矩阵是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6020c5cc6bfaa3dddb92b508807154d4.png)
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2 . 已知矩阵
的某个行向量的模不大于行列式
中元素0的代数余子式的值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c43426c19bc1e234d1307c8cbdc4f22a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f67555a8aaf9f0dea88f1812d6b7e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2020-02-29更新
|
75次组卷
|
2卷引用:上海市金山中学2018-2019学年高二上学期期中数学试题
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3 . 已知一个关于
的二元一次方程组的增广矩阵为
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e647c14561826ba9e396acc5a3792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8002d291ce133b2c804674877123491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8c493c1d99425bf5bf35d5f7813207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3375d59253a775afbbf37a7ff1131c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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4 . 矩阵运算
的几何意义为平面上的点
在矩阵
的作用下变换成点
若曲线
在矩阵
的作用下变换成曲线
则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a10b9be082ae1e75f8a56e06b1a30b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dbdca5ba316d74e1f1146b7502ad231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260c51ace0eaf9ad4b9b2187e2d6bd50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a10b9be082ae1e75f8a56e06b1a30b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed5501bf7807903cd87fe00a5557171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3d5d0fcc0311f3e7474c4da83a1255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb99abc26156c2dfe6941041e7e9f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95183ef59f0de9c042891341da8e2f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba391c290c403c6f456271dbe3cc9ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739cb10e72ef43252f7726e83e41b6d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
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5 . 已知线性方程组的增广矩阵为
若该线性方程组的解为
则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8002d291ce133b2c804674877123491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9ed8e191353926e184d6f78f6bfc39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc3c6f830496d03008ec7a759f61246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e40012015d02b09a45ec74585e12b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2019-11-06更新
|
84次组卷
|
3卷引用:上海市金山中学2018-2019学年高三下学期3月月考数学试题
6 . 将曲线
按照伸缩变换
后得到的曲线方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c2d5ba76c1c4f43174d9bb630e58a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa45b6d5a665317e3a5f4fb34d94cf2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2019-09-23更新
|
323次组卷
|
3卷引用:吉林省扶余市第一中学2018-2019学年高二下学期期末数学(文)试题
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7 . 方程组
的增广矩阵是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb66c070d7eb82d92c31e20dd9009f8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 利用行列式解关于
、
的二元一次方程组
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e359f04f4f8a48b45e231a8ddf64732.png)
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9 . 在行列式
中,第二行第一列元素1的代数余子式的值为11,则
的值是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51256f1fecb0bba2762cc2fc9ff3bcbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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10 . 已知矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8b82276ef559c12df95bc6b656f8cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6dd492fb747c14e7426991a21e55634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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