名校
1 . 设集合
.
(1)证明:若
,则
:
(2)已知集合
,若
的子集共有
个,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e639106311b8650c63109e02c9bae25.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0ac8b620b5eca9daa7276712935ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae4202aa738ce97198687198555c84c.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78e72a3713b736a92a1cc9b48504e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2021-09-05更新
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4卷引用:吉林省四平市第一高级中学2020-2021学年高三上学期第一次月考数学(理)试题