名校
1 . 已知函数
,
.
(1)若
存在极小值,求实数
的取值范围;
(2)设
是
的极小值点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/160602a87d2645363d45ec59bba246e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc8ecf91d5a295bd998eed6d1c64886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1148acb0b4fd538a15857fdda4f6efb4.png)
您最近一年使用:0次
2019-05-14更新
|
1862次组卷
|
6卷引用:2020届湖北省黄冈中学高三下学期2月月考数学(理)试题