已知集合
在①
;②“
”是“
”的充分条件;③
是
的必要条件.这三个条件中任选一个,补充到本题第(2)问的横线处,求解下列问题.
(1)当
;
(2)若_______,求实数
的取值范围.注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0324346ce7de81e62135a9079fc508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8723f62855096c7012bd3f724167e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dccb0f3cdcca85ed41ca903d5b9d0d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54162930af2f1820f380ee2d3e95ec6b.png)
(2)若_______,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-12-20 14:07:58
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【推荐2】已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c973e4df2a1fee06491432d974d58cad.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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