1 . 已知矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a375ca77464edc49e7e1473eeb6c1b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68b43ce6a3774527e6cf5a86d49168f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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2 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308581988844a2df0a39af695433c87d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308581988844a2df0a39af695433c87d.png)
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3 . 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
名校
4 . 若
,则
化简后的值等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b325fbcff00aa5822b8d72a59c01eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
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名校
5 . 行列式
中元素0所对应的代数余子式的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd4b730ffaf31203f0aac7ba0217d925.png)
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6 . 若矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450406e17a9b33a778e0b3d57d9ac253.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d02075b3881d5b1ac3f2ddd94f68f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870e8742d4ce3fdb96e1932cf68bf661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450406e17a9b33a778e0b3d57d9ac253.png)
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7 . 把
表示成三阶行列式______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52adf8b32885978990e2cbc0aac79b0a.png)
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8 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9706296e76eee3e4fdfae120aa64d138.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9706296e76eee3e4fdfae120aa64d138.png)
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9 . 方程
的解为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c0e396794b4c7ddab70c4a4610eea1.png)
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10 . 不等式
的解集是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8bb7ef9f2d9773cb04ae7b90fbc96a4.png)
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