若关于
的不等式
的解集为
,且存在实数
,使得
,则
的取值集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbbe56eaafdff18126b1e2730a5daacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b6dd8e7f3bd2ac43b3fbd6ab67749a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2021-07-18 14:11:45
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【知识点】 求绝对值不等式中参数值或范围解读
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】已知
为实数,不等式
对一切实数
都成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e2660cd5774156c390c383b3f4f010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
您最近一年使用:0次
填空题-双空题
|
适中
(0.65)
解题方法
【推荐2】已知函数
,则:
(1)不等式
的解集为________ ;
(2)若不等式
的解集为
,则
的取值范围为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccb53e246cd4c5eae6816a6d5bb7361.png)
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640d3bcd10055871a5ec2f442c1030c1.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc99846cc58c8b63e1c305397889118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次