名校
1 . 已知函数
.
(1)讨论函数
的零点个数;
(2)已知函数
,当
时,关于
的方程
有两个实根
,求证:
.(注:
是自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d04d1553acd6b9bae9ddcc3e85c2b57f.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0392aad936c800e9e10c7937292be83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd6a2f828b37dd18ea82524ce5f935e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41ce7abeccf6a58d1b2181cbd1ed608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
您最近一年使用:0次
2023-10-29更新
|
751次组卷
|
4卷引用:河南省洛阳市洛宁县第一高级中学2023-2024学年高三上学期11月月考数学试题
解题方法
2 . 已知函数
.
(1)当
时,求
在区间
上的最值;
(2)若
有两个不同的零点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e9f45f86ee4cac88d16435393c7cec.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.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/29909a4fdb8764b59f28bb63ce8da9db.png)
您最近一年使用:0次
2023-12-07更新
|
422次组卷
|
4卷引用:河南省TOP二十名校2024届高三上学期调研考试八数学试卷
名校
解题方法
3 . 已知函数
.
(1)若
在
上单调递减,求实数
的取值范围;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e240a5e97a7c1b55cf69946c4dc553.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb56c4d08062c178b706b9e1c7cec5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035c8e0ab1aeabf3306be201aaaa78a9.png)
您最近一年使用:0次
2023-12-21更新
|
227次组卷
|
2卷引用:河南省湘豫名校2024届高三上学期12月联考数学试题
名校
4 . 已知
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb96f39637da70f64bb06f0b4a5eb301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba85a9e0c7ecc82a5ad498e3c2c6ab9.png)
您最近一年使用:0次
2023-12-14更新
|
108次组卷
|
9卷引用:2015-2016年北大附中河南分校高二宏志班上抽考文数学卷
2015-2016年北大附中河南分校高二宏志班上抽考文数学卷河南省周口市中英文学校2019-2020学年高二下学期期中考试(6月)数学(文)试题河南省济源市英才学校2022-2023学年高二下学期期中考试数学试题(已下线)考点64 证明(讲解)-2021年高考数学复习一轮复习笔记(已下线)专题12不等式的证明技巧的求解策略解题模板安徽省宿州市泗县第一中学2020-2021学年高二下学期第二次月考数学(理)试题安徽省宿州市泗县第一中学2020-2021学年高二下学期第二次月考数学(文)试题(已下线)2.1 (分层练)用不等式(组)表示不等关系-2021-2022学年高中数学必修第一册课时解读与训练(人教A版2019)(已下线)第12题 综合法由因导果,分析法执果索因(优质好题一题多解)
名校
解题方法
5 . 设函数
在区间
上的导函数为
,且
在
上存在导函数
(其中
).定义:若在区间
上
恒成立,则称函数
在区间
上为凸函数.已知
,
(
).
(1)判断函数
在区间
上是否为凸函数,说明理由;
(2)已知函数
为
上的凸函数,求
的取值范围,并证明:函数
图象上任意一点的切线总在
的图象的上方;
(3)若
,求函数
(
)的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca214aa6276b96d67a451c3fdbc59b3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683d7c81a47aeaae60c0dde61164ab7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882d17c122eb8008105e85d55bf55587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95267538729f438f1ceb509860efe3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.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)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a716dc950dbf17b8241ee8f4c6d6c494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
您最近一年使用:0次
名校
6 . 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
,
(
).
①求
的取值范围;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82b6de4b2701fdc0a49f9aab1a17941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd083f3324c690633af999efecb6f73.png)
您最近一年使用:0次
2023-11-29更新
|
874次组卷
|
4卷引用:河南省新高中创新联盟TOP二十名校计划2024届高三上学期11月调研考试数学试题
名校
7 . 已知函数
.
(1)讨论
的单调性;
(2)设
,若
,
是
的两个极值点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b450287f8fa1f4687f3efc3fd7444e2e.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4fa78856909db6d9e7c43078bcc7ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4588a79e160bca3711b1151a52f26b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd330acca8e17f5ff9aca1f0f312df50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1b9f152654fd42b112adb81a5879bc.png)
您最近一年使用:0次
2023-11-09更新
|
617次组卷
|
5卷引用:河南省许昌市禹州市高级中学2024届高三上学期12月月考数学试题
名校
解题方法
8 . 已知函数
,
.
(1)若函数
在定义域上单调递增,求
的取值范围;
(2)若函数
有两个极值点
.
(i)求
的取值范围;
(ii)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa6a40d8772bdc1becba2857272aa7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70a31c1e21548002b21b55015d361cf.png)
您最近一年使用:0次
2024-03-07更新
|
824次组卷
|
4卷引用:河南省实验中学2023-2024学年高二下学期第一次月考数学试卷
名校
解题方法
9 . 已知函数
.
(1)若
对
恒成立,求
的取值范围;
(2)当
时,若关于
的方程
有三个不相等的实数根
,
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139ccda5ac5ed8c01bd0e87e84d30e09.png)
,求
的取值范围,并证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25af1b7613f714301020bb09a33d8fe8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427ddc261e4aea13a25fa479749f4074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c5f6fe92b97f07fb31b118fa97b11a.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/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139ccda5ac5ed8c01bd0e87e84d30e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebb401767499a3b5eedf56cb36b4127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9e12d9f9b1dbd7a1ad8fffe752f5e7.png)
您最近一年使用:0次
2024-05-22更新
|
217次组卷
|
2卷引用:河南省九师联盟2024届高三下学期5月联考数学试题
名校
10 . 已知函数
在
处的切线方程为
.
(1)求
,
的值;
(2)证明:
在
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51e9eed39bbb9d441ec425bfe8a41d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9bbfa64c2e67ac4736b8908de6abc2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
您最近一年使用:0次
2024-03-01更新
|
2900次组卷
|
8卷引用:河南省中原名校2024届高三下学期3月联考数学试题
河南省中原名校2024届高三下学期3月联考数学试题(已下线)专题2 导数在研究函数单调性中的应用(讲)(已下线)第六章:导数章末重点题型复习(1)(已下线)第2套 全真模拟篇 【模块三】广东省佛山市顺德市李兆基中学2023-2024学年高二下学期3月月考数学试题(已下线)第二章 导数及其应用(单元综合检测卷)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第二册)甘肃省白银市会宁县第四中学2023-2024学年高二下学期第一次月考数学试卷(已下线)模块一 专题2 《导数在研究函数单调性中的应用》(苏教版)