1 . 若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b84fa1487edf1b2bb4f0091f3a32e58.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f952be9744b877422aaf7caf95c6d991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66cc239e16520720a0f89ddd8853f453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b84fa1487edf1b2bb4f0091f3a32e58.png)
您最近一年使用:0次
名校
2 .
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6826e19f6aa75d2cb11802417a7b5753.png)
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名校
3 . 若行列式
中
,元素
的代数余子式大于
,则
满足的条件是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c9ff62c4b13609a83efbf5f45a1440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5e9507fb67e9d4528586a7461939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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4 . 已知矩阵
的某个列向量的模不大于行列式
的值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8285aeaed420f3a2da81b65c50d33fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cc20ec318c1cf6c183b44c1eb723ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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11-12高二·上海·期末
5 . 增广矩阵为
的线性方程组的解为________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cf783d11394da34970de9f3a2343fc.png)
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