解题方法
1 . 若函数
,
.
(1)
,都有
成立,求
的范围;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d601b9103e7c398bbc986235e63ab4d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96cbb641b58e6fe9f8030f69312d2d6.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3a36d957cb83768b5f6a2d0fac763e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2 . 已知函数
. 设关于
的不等式
的解集为
,若
,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09abd061554b090c5a7704ea3fd6a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e43f8a95643e2e5291e135f348a1391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc54bb752f25b2f734b12d57d2812611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 若不等式
的解集是区间
的子集,则实数
的取值范围为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05e60bdd1813e4c79532a2c76d61cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788735cad5da81ecef62dfca42b86096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
497次组卷
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4卷引用:浙江省台州市书生中学2020-2021学年高一上学期12月第三次月考数学试题