解题方法
1 . (1)若关于
的不等式
对
都成立,求
的取值范围;
(2)已知二次不等式
的解集为
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b58ffd6c69d63e26308f12d933ebc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知二次不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b58ffd6c69d63e26308f12d933ebc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795fc557523a70c597f6f79bc0dfc472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4afc5894d1455d88a26c7040e45d4b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-01-10更新
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3卷引用:内蒙古自治区包头市2023-2024学年高一上学期期末数学试题