已知全集
,集合
.
(1)当
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22791e113b69c68489da3287b6f903fb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9ee4df3cd0c5982eec8be19e136130.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9daf98127a1703a226e89d3c83e7f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
23-24高一上·河北石家庄·阶段练习 查看更多[2]
更新时间:2023-10-22 08:07:07
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解题方法
【推荐1】设集合
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(1)当
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(2)若
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【推荐2】已知集合
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(1)求
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(1)当
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(2)若
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您最近一年使用:0次
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适中
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【推荐1】已知集合
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(2)若
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您最近一年使用:0次
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适中
(0.65)
名校
【推荐2】设全集
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46cf1d45cae9d3d3ee3720c3daf0dca1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21778974e8491fe2a158e70b459217be.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e37866ae442412bf0ce810169e17481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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