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1 . 下列说法中不正确的是( )
A.已知函数![]() ![]() ![]() ![]() ![]() |
B.若关于![]() ![]() ![]() ![]() |
C.命题“![]() ![]() |
D.函数![]() ![]() |
您最近一年使用:0次
2022-11-14更新
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298次组卷
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3卷引用:重庆市第二十九中学2022-2023学年高一上学期期中数学试题
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2 . 已知集合
.给定一个函数
,定义集合
.若
对任意的
成立,则称该函数
具有性质“
”.则下列函数中具有性质“
”的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15435ce3ac7c9cba8c9fee03aefa3dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17363e81675cf39677c6bb5d0f2a9f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e847907fda445c04edd732d1b77acc88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-12更新
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476次组卷
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2卷引用:重庆市第二十九中学2022-2023学年高一上学期期中数学试题
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解题方法
3 . 已知函数
的定义域为集合
,函数
,
的值域为集合
.
(1)求
,
;
(2)设集合
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448ba1246d70c6f38484ed44c54f92ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd167c3d6e67dc24ea344238022f11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90918b116ddc7dd7115ece5520dbd006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf545a926b90ed190b70e3d598b98fe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a5ac7ed4bd137446b0bb9bfe8bc77b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 设两个向量
和
,其中
、
、
为实数,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4a0841ae6d26c6aae59e3a5e5dcf00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602cbf8cc50e3b2d1d6ca831896f873c.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619492193886208/1619492194541568/STEM/3db36834ce5245e399081260735c60ee.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619492193886208/1619492194541568/STEM/98fc21a9acb149dc8667ab781b723dee.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619492193886208/1619492194541568/STEM/55e9da24fe24478b89e7e8caadc0ab11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae8b3205cba1766a3ea224f75bd9650.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619492193886208/1619492194541568/STEM/22f311549bf84ede83a7e60682aac526.png)
您最近一年使用:0次
2017-02-08更新
|
832次组卷
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3卷引用:重庆复旦中学2020-2021学年高一下学期期中数学试题