1 . 在三阶行列式
中,5的余子式的值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658e27e73612c0fe4835194d1bd44fb1.png)
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2 . 已知矩阵
.
(1)计算
;
(2)通过第(1)小题的计算猜想
的结论
;
(3)用数学归纳法证明你的结论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6e1b0671e5a92cfb1a5ad939962ad2.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6a5e6b0e2ecf059e35675f5276ea96.png)
(2)通过第(1)小题的计算猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab9d5b4d50800fadbec4246b28fd051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fc82353331abee0828dee9b38c08f2.png)
(3)用数学归纳法证明你的结论
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3 . 方程
的解集是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6645d97b3a52a6f837719fdecb5f64cc.png)
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4 . 计算三阶行列式的值:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbbb10786ef3df8c0315212644fa7705.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbbb10786ef3df8c0315212644fa7705.png)
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5 . 解方程组
,并求使得
的实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf9e63b8ffb13fe38a51e6fd57303eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f23be9638a5d5934d0a3c55f3156b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 .
,
,
,如果
、
、
三点共线,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188432484e5072404b3b4d0791edf35d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2f117dc9adcb8fa7acf25bd2cbf283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2010·上海普陀·一模
名校
7 . 线性方程组
的增广矩阵是_________________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34953a4bb9dc87f1e975a140cfa58bb6.png)
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2019-01-30更新
|
498次组卷
|
4卷引用:上海市大团中学2018-2019学年高二上学期期中数学试题
8 .
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9dc4db11eb3657cb5b1ea86638b5070.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9dc4db11eb3657cb5b1ea86638b5070.png)
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9 . 已知矩阵
,矩阵
,向量
经过矩阵A变换为向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
_______ ,变换后的向量与原向量关于直线__________ 对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe583308420e454fd3f178f981b809f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac01b83eaa516bcfc9f0008aa024c887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7552498f28957497b2e484f37b69d747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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10 . 方程组
有唯一解,则
的值不可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5f5e624f7b41e31750fe2c11a6692a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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