解题方法
1 . 已知
,
,若对于任意
,都有
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c210bbd91d4c910682c6f9ce81c4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26143c4d776192dd5d2fb8c5b937ae95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0938060be50272d1f678079bafd33c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2022-11-20更新
|
145次组卷
|
2卷引用:福建省南平市浦城县第三中学2023届高三上学期期中测试数学模拟卷试题(2)
解题方法
2 . 已知:
,若
有最值,则
的取值范围为_______ ;若当
时,
,则
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3209dff6bbdde2d918e9a8451ec7bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d94a2a5128151b5293e1e8a29e3b92b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次