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1 . 若
,(
为虚数单位),则复数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093674d4de31fbcb44d09f548a1b5444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
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2 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fd5854e89b9246eb6e745cee228889.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d038496f10f979d96318aee97a8d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fd5854e89b9246eb6e745cee228889.png)
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3 . 已知矩阵
,
,且
.
(1)求实数
、
的值;
(2)求矩阵
的特征值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc1773057af50742a11c13538702bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9542192476d384dc71549adae54b0135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b8ea27342e250877fdef55f6bc3cf10.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)求矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2019-09-19更新
|
63次组卷
|
2卷引用:江苏省南通市海安高级中学2019-2020学年高三上学期9月月考数学试题
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4 . 二元一次方程组
存在唯一解的必要非充分条件是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91fa78432d1a129cff2637c9bea7733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.系数行列式![]() |
B.比例式![]() |
C.向量![]() |
D.直线![]() ![]() |
您最近一年使用:0次
2019-04-20更新
|
384次组卷
|
4卷引用:上海市七宝中学2019届高三下学期开学考试数学试题