名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab1e105ad073712b9b96c1dbd75f954.png)
(1)若
是
的一个极值点,求
的最小值;
(2)若函数
有两个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab1e105ad073712b9b96c1dbd75f954.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca393b78af2cb9db8d0e33bc740001a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-03-23更新
|
1391次组卷
|
9卷引用:四川省乐山市沫若中学2021-2022学年高二下学期第二次月考数学(理)试题
解题方法
2 . 已知函数
.
(1)求函数
的最大值;
(2)斜率为k的直线与曲线
交于
,
两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ceb3fc80072b6bb97249515ae483bef.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)斜率为k的直线与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad9a4881ebe1a4a566d0fab96d71baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097e8d8b72a1988e98cef3e609519f71.png)
您最近一年使用:0次