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1 . 若矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af993743a7396d44dbb4b918ca5a305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b8e774e3c1d2d5193b89c9fbe565f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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18-19高三上·上海·期中
名校
2 . 一般地,矩阵运算
,可以看作向量
经过矩阵
变换为向量
,我们把矩阵
叫做变换矩阵,向量
叫做向量
的像,已知向量
的像是
,则对应的变换矩阵是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62cf3965b5022246c83065a86e088003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2335f5b3275c1a09ebd2bca16eabae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1eaadd274b7644891f5550a799a11bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc78428faf1d1ab3a7d5f6e987e7aa24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1eaadd274b7644891f5550a799a11bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc78428faf1d1ab3a7d5f6e987e7aa24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2335f5b3275c1a09ebd2bca16eabae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343c5b5488ea925bdac5bf102be3e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d27068a57439cebe62d43138fc7feaf.png)
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18-19高三上·上海·期中
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3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8b3e693a5537dc40c61d48c975f0bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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4 . 已知矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e4b577c5f4015fd9dd6d170759ad67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38fe384ef8b2d9171adc184b434b6a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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5 . 若行列式
的第二行,第三列元素的代数余子式的值等于
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3fcd15a55c2e9d1e335f3d8d055881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2019-11-13更新
|
54次组卷
|
2卷引用:上海市吴淞中学2018-2019学年高二下学期期中数学试题
6 .
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de51bb643f9c73a9941a8923f1a5f212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22cd35b3f66cdeae8d9998d824194308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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2019-11-10更新
|
45次组卷
|
2卷引用:上海市嘉定区封浜高级中学2019-2020学年高二上学期期中数学试题
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7 . 行列式
中,其中3的余子式的值是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8515fce28c82cb30ba5ff5dbe7bdc320.png)
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8 . 把二元一次方程组的增广矩阵
变换为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b310766f85c79195e30cf8a7574c939b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c03b9c9cb0af1c9b35553ddbbcb7fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
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9 . 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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10 . 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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