1 . 解矩阵方程
,其中
为矩阵.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9cc96ee882fcd887b30b48d2cbce79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
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2 . 已知矩阵
,矩阵
.若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1bcf191ba1227a50a05937f0c00b808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1aa97f7b970480584684dd44883e8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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3 . 关于
,
的方程组
无解,则实数
的值是
![](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/b64b03feb1b71562f4da1b194b065a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.不存在 |
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4 . 在行列式
中,
与
的代数余子式的和是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d9867612d73f2ce0b6d9923cda2d778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db1435430b74d93eea021fc04b894be.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db1435430b74d93eea021fc04b894be.png)
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6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e49e8b0cbdb3820bfd292928091938.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e49e8b0cbdb3820bfd292928091938.png)
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7 . 关于
,
的方程组
有唯一解的充要条件是__________ .
![](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/27b053e40ff5c6d7abce384515909a05.png)
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8 .
,
,
,则
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16a46f03535c5af872fa8fa9f21a431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c774c54ad5850a226206014d218ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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9 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d16d2911ce887bb62dc5c07a8aa5a08.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d16d2911ce887bb62dc5c07a8aa5a08.png)
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10 . 函数
的最小值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3be86cc1856c2f52005bcb34f9557a.png)
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