已知集合
,
.
(1)若“
”是“
”的充分条件,求
的取值范围;
(2)若
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c9136278afc3a04aa285f0b343bbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fe4cd2ddee11b8a1679ec36df74b6a.png)
(1)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479511a50da604b2fc7398617db8387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098436e597461bf8a5bab51f2b5d7493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366749e18358402f70feb02785251caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2022-11-23 19:43:39
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6861dcffbf9ce27e948690085ce354c3.png)
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