1 . 已知矩阵
,A的逆矩阵
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312f71b1bf968ca235e29e66b7f1e08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e8a223672608a44cc54be309747ac00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a335fc7c2c46946f0bf908c78bcc46fa.png)
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2 . 已知矩阵
,
,则矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7641b4223fb77a9a712ff9b3ec55bc.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3e738f9c413a0b1e3de7479b8b244d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249b9b24f590c7dd1de8fd77cb8d5309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7641b4223fb77a9a712ff9b3ec55bc.png)
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2020-04-24更新
|
81次组卷
|
2卷引用:江苏省徐州市2018-2019学年高二下学期期末理科数学试题
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3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2529bbe0a807b878a34b3deb435edd0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f461795a1b2155ed2fe724dbf4ec6ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2529bbe0a807b878a34b3deb435edd0.png)
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4 . 若曲线
经过T变换作用后纵坐标不变、横坐标变为原来的2倍,则T变换所对应的矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9163ebe812708ee5337d62298c2e3363.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9163ebe812708ee5337d62298c2e3363.png)
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2019-09-18更新
|
126次组卷
|
2卷引用:江苏省天一中学2018-2019学年高二(强化班)下学期期末考试数学试题
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5 . 已知矩阵
,若矩阵C满足
,则矩阵C的所有特征值之和为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23a701ee8748bea479789b496262733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc03f918e5d50b2d1d2456dcb2bdc11.png)
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2019-09-12更新
|
105次组卷
|
2卷引用:江苏省无锡市天一中学2018-2019学年高一下学期期中考试数学(平行班)试题
6 . 若曲线
在矩阵
对应的变换下变为一个椭圆,则椭圆的离心率为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7743cc412590efd33396a1cc47ffb9c.png)
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7 . 矩阵
的逆矩阵
为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb040b412bba24b11bd9fb989dae047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a84646168f0afc4380043a52b818c35.png)
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2019-07-11更新
|
116次组卷
|
2卷引用:江苏省无锡市普通高中2018-2019学年高二下学期期末数学(理)试题
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8 . 已知
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ad0004771df5fef239fdb4e219229d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db0d640b8ef9e7f05b914ad45725ac16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca0b0c71336832e329c40d4dd3553d7.png)
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9 . 已知
,则曲线
在
的作用下得到的新曲线方程_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2308a1a8088b78d95e0787a6b9f6c61b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943fecc8fa33ccc1dca0b0cb9e908224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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10 . 已知
,
是矩阵
的属于特征值
的一个特征向量,则矩阵
的另一个特征值为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a58eacc2e14a83d0524c1a2bf152a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943a794aecb68d06606ec48fff100831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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