名校
1 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)设
,若函数
至少有两个不同的零点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f09e24effb9d3164bdac8515dc0a021.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a81e971f501d78f5560c0c3d42f0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a20457d180264f78d611dc7893d735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89eea593c79973e97f6f3cdf621cdfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ee71d55403212e8e1613b18ad38196.png)
您最近一年使用:0次
2022-10-10更新
|
218次组卷
|
3卷引用:新疆石河子第一中学2023届高三上学期10月月考数学(理)试题
名校
解题方法
2 . 设
,
,
(其中
是自然对数的底数),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40afd07c5067475a1cd817ed2d73d915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7c96bc3b8661b7773c54ffebbcb45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab376b03a96dabdc021bb47323e01169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e3ce576f0766f29349db973fc22eb8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-03-16更新
|
399次组卷
|
3卷引用:新疆石河子第一中学2021-2022学年高二下学期4月月考数学(理)试题