解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb9574b53b3aa460d0ac42d54d01a5e.png)
更新时间:2023-10-02 12:41:44
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【知识点】 解不含参数的一元二次不等式解读
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解答题-问答题
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较易
(0.85)
【推荐2】已知全集
,集合
.
(1)求
;
(2)若集合
,且
,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573170643705856/1573170649899008/STEM/3bde7f1756224a8fabdb9997dde83557.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573170643705856/1573170649899008/STEM/0c69867bc5984558b664da6f48b83853.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573170643705856/1573170649899008/STEM/d5e08100150a4b659c2164293cf5ff9d.png)
(2)若集合
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573170643705856/1573170649899008/STEM/6f769859b1eb4834b19ef4d2a15ef6ab.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573170643705856/1573170649899008/STEM/d50baf27024047f0882521a52f5da21d.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573170643705856/1573170649899008/STEM/a4acd3598e814b1cb711d1ccf75e438c.png)
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