1 . 已知集合
.
(1)命题
,命题
,且
是
的必要不充分条件,求实数
的取值范围;
(2)若
为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21de6fa68f68ad1302f53259c0047fd.png)
(1)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc11e9183ffccd297df4a1c18618bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218c5309e534904dc6bf768074965239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0d0f495ef8f5853c53d6d69df5281c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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解题方法
2 . 设全集
,集合
,集合
.
(1)若
,求实数
的取值范围
(2)求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ad87434338c0ccf6220c5f3233430e.png)
(3)有三个条件:①
, ②
,③若“
”是“
”的必要条件,从这三个条件中任选一个作为已知条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a67a26d25f96b590b0e224e13ef81e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6c344f8d1dc47fed0f4ad0e534d82c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fdc39a8ab556aef6c63c5cd723c5a3e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1158f1d97e555aef926ac1cfc3995c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ad87434338c0ccf6220c5f3233430e.png)
(3)有三个条件:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7556aed2052a7235721c380271229779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4158b45eb02a7765e069e58eacaa576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc4c15b1d62420f42732db3b626ce3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a3a95a978c23259caf993285d987b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
您最近一年使用:0次
2022-10-21更新
|
512次组卷
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3卷引用:福建省宁德第一中学2022-2023学年高一上学期半期考考前适应性考试数学试题