1 . 已知函数
.
(1)若
求方程
的解集;
(2)若
有两个零点且有两个极值点,记两个极值点为
,
①求
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad084d3bce1e2de2bf59a9a981fc9912.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8603ae7a8417d09605fa706e31d3dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9694eaaa274ed8e3774a100aff5f101.png)
您最近一年使用:0次
2 . 已知函数
.
(1)若
在
上单调递增,求实数
的取值范围.
(2)已知方程
有两个不相等的实数根
,且
.
①求
的取值范围;
②若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e058fc816e9935f358b1cb90433875d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e44284cb19805a584880a686ac3df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192bebeaecf1729c55efad6e749a04e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae0a96799a6ffd8d340951b9db8da6d.png)
您最近一年使用:0次
3 . 已知函数
.
(1)若
,求
的图象在
处的切线方程;
(2)若
有两个极值点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb41724d9a030cc2694a58dee5387494.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b725fdc8de9800f2692f6fea8585b1e9.png)
您最近一年使用:0次
2023-07-07更新
|
474次组卷
|
5卷引用:辽宁省辽阳市2022-2023学年高二下学期期末考试数学试题
4 . 已知函数
.
(1)判断函数
在区间
上零点和极值点的个数,并给出证明;
(2)若
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f448e220769c620ed39ad87a802fa00.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f42af9fa3a5ce80dafd4ab8e8ef0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
5 . 已知函数
,其中
.
(1)若
,讨论函数
的单调性;
(2)已知
,
是函数
的两个零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86187410f634d2f68704b05d9ee49d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6a8b94c02716736000e2e817b532a7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7825b129635e3c3c4aba6f17aa0007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684bcf84f0a266515bfafde0da903050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3c7bb85e44e9fdeb0a51875fb8804b.png)
您最近一年使用:0次
2023-07-18更新
|
519次组卷
|
4卷引用:辽宁省五校2022-2023学年高二下学期期末数学试题
名校
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bc7f7a24e5a4c7151627d8eb2ad4e6.png)
.
(1)若存在
使得
成立,求a的取值范围;
(2)设函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bc7f7a24e5a4c7151627d8eb2ad4e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9bb4323c13d4a5dbc6d934f0d7b8c1.png)
(1)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53224898de85a85058ad336490bbbaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f727ae54aff8555aa78f13a82322af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20571bf5d17d43c5ba1bb0b060d45c0f.png)
您最近一年使用:0次
2023-02-14更新
|
1802次组卷
|
6卷引用:辽宁省辽南协作校2022-2023学年高二下学期期末考试数学试题
辽宁省辽南协作校2022-2023学年高二下学期期末考试数学试题陕西省铜川市王益中学2023届高三下学期一模理科数学试题广东省广州市西关外国语学校2022-2023学年高二下学期期中数学试题(已下线)第5章 导数及其应用(B卷·能力提升练)-【单元测试】2022-2023学年高二数学分层训练AB卷(沪教版2020选择性必修第二册)(已下线)拓展七:导数双变量问题的7种考法总结-【帮课堂】2022-2023学年高二数学同步精品讲义(人教A版2019选择性必修第二册)广东省佛山市顺德区第一中学2022-2023学年高二下学期5月月数学试题
7 . 已知函数
.证明:
(1)存在唯一
,使
;
(2)存在唯一
,使
且对(1)中的
,有
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe5b25c21aef2352cb0429bdab43181.png)
(1)存在唯一
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a9667df49e07e970ec71c33514a5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36825543013336c9df727bc51ff62c6.png)
(2)存在唯一
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6932743b4a00edda89a7882f0e1e3096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4b5d688ceb6f0b9f8b1b3efb04d57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3603e3e9878e8efe8155d57a3f6e31f6.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66911b52324ca2d1aa6ecd0423e48b52.png)
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解题方法
8 . 已知函数
,
(1)若
时,求证:函数
)只有一个零点;
(2)对
时,总有
恒成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868b6a84b8ba850245610435aa0bef2d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765a1076581eeaffdc124f1a1676c10e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8625151f40f341575c1a71992e485188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f5253e0770377a99d6e0ede768fc92.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)证明:若
,则
;
(2)证明:若
有两个零点
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6102ca4dcd95bc834a251e0c51ffd0e.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9673d1b326a5bbcd5105037398e9530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b725fdc8de9800f2692f6fea8585b1e9.png)
您最近一年使用:0次
名校
10 . 已知函数
(其中
是自然对数的底数).
(1)求曲线
在点
处的切线方程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb71675f17abece239672f6f6b8c0482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c13231ccab42f48959b597f21fb3ff.png)
您最近一年使用:0次
2022-06-01更新
|
884次组卷
|
5卷引用:辽宁省鞍山市2024届高三上学期期末联考模拟练习数学试题
辽宁省鞍山市2024届高三上学期期末联考模拟练习数学试题东北三省三校(哈尔滨师大附中、东北师大附中、辽宁省实验中学)2022届高三第四次模拟联考文科数学试题(已下线)专题08 证明不等式问题2(已下线)专题09 导数压轴解答题(证明类)-2(已下线)专题17 盘点利用导数证明不等式的五种方法-1