集合
,集合
.
(1)若集合
,求实数
的取值范围;
(2)当
时,没有元素
使
与
同时成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e89d2553d886bc3c15029699c95dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c18abac579c0a6ba415b22882e8a23.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbb65b57106de227a8ed722131b63fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a6e5b8aaed692d8be521e82df5a230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.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/3ab4717e4827480f0f6f4ded85e52eab.png)
更新时间:2022-10-23 22:56:14
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解题方法
【推荐1】(1)已知集合
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【推荐2】设函数
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(2)若
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解题方法
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(1)当
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(2)当
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(2)若
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