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1 . 设集合
,
.
(1)若
,求
;
(2)当
时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a0a502362cd14fedc6fe648dd1751e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf0201291b6b3f67e43ec9684266ef3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b569bd1df594e70666e9f6ea3d851a4.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8fddb00c7b2782f595bb9623945edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-11-15更新
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815次组卷
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5卷引用:福建省三明第一中学2022届高三学业水平测试数学试题