关于
的不等式
,
.(1)当
时,不等式
解集是___________ .
(2)若不等式
对任意
恒成立,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8d82dc49811bb9ed962cf5a934c636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8d82dc49811bb9ed962cf5a934c636.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8d82dc49811bb9ed962cf5a934c636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2021-08-16 16:58:50
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【推荐1】已知集合
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【推荐2】已知关于x的不等式
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