已知
,
,若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8ab84dd0c3a9a25e3a2da0f948f6bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10e8edad391484ba880a5c9c1677b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
更新时间:2019-11-08 22:37:23
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【知识点】 根据集合的包含关系求参数解读
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】设全集为R,集合
.
(1)若
,求
;
(2)在①
,②
,③
,这三个条件中任选一个作为已知条件,求实数a的取值范围.(注:如果选择多个条件分别解答,则按第一个解答计分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6c05883736b1f76c5312ea9333f487.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354ba538d9b1102e66f631729eecbafd.png)
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解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】设关于
的不等式
的解集为
,不等式
的解集为
.
(1)若
,求集合
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12660004a290c46b7fe3a7f3c5b30364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe0b1cdc8c7d4ea1858a8df39f50008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7643d87ec4451cb9ee1c93252cd01b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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