名校
1 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若关于x的不等式
在
上恒成立,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9e69ca78ddb0cab279978f75c36ca5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe499772d3d5d5b97f6349e5bf122250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
,
是
的导函数,若
,不等式
恒成立,则实数a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b7a4bd569e2d90e3d01655a03a7f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274b4edbba503ea1b3ac1e3d1bbfe91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6961394f31b3293e6f953352be0d4148.png)
您最近一年使用:0次
2023-07-05更新
|
235次组卷
|
2卷引用:河南省南阳市六校2022-2023学年高二下学期期末考试数学试题
名校
3 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)记函数
,设
是函数
的两个极值点,若
,且
恒成立,求实数m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b3a22b28217af79ce27c83b2a57588.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6ff1f6422eb3a03fa5107b2d56b061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebf7dd44e24f45150d01af41948e761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead3e7f90f220e4e3574a3bf29b91e95.png)
您最近一年使用:0次
2023-07-05更新
|
630次组卷
|
3卷引用:河南省南阳市第一中学校2023-2024学年高三上学期开学考试数学试题
河南省南阳市第一中学校2023-2024学年高三上学期开学考试数学试题广东省珠海市斗门区第一中学2022-2023学年高二下学期6月阶段考数学试题(已下线)第六章 导数与不等式恒成立问题 专题九 双变量不等式恒成立问题 微点3 双变量不等式恒成立问题之换元法
解题方法
4 . 函数
,
.
(1)讨论
的极值的个数;
(2)若
在
上恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae28289edffa8cf31addfbe53ec19612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8949760993f4ea9f1362266269282b7a.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11189f5ca49aad543dfda75290cc8c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
您最近一年使用:0次
5 . 已知函数
,(其中
,
是自然对数的底数),若对定义域内的任意两个不同的数
、
,恒有
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2f07b999bc0d6a85b110a07a690e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.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/c56b26ea6fefbf21a86e07481a2e8330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
6 . 已知函数
,
.
(1)若
为
上的增函数,求
的取值范围;
(2)若
在
内恒成立,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed85e516715c0082cae32f1a09cc312e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ad04771eda0d7b0f4e14cf8d977c74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
您最近一年使用:0次
2023-06-27更新
|
355次组卷
|
3卷引用:河南省TOP二十名校2023届高三3月调研模拟理科数学试题
解题方法
7 . 已知函数
,
,若
恒成立,则实数m的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0edec3161c77936dfcbc7027bebb90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc2fb8625193b734851d886f6494779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
您最近一年使用:0次
2023-06-22更新
|
277次组卷
|
2卷引用:河南省郑州市等3地2022-2023学年高三下学期6月冲刺卷(五)全国卷理科数学试题
8 . 已知函数
.
(1)证明:
在
上单调递减;
(2)若函数
(
为
的导函数),且
单调递增,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dccbe53c6c3681fa510ab6150df1957.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/426a7095b7ce712436d9f7579d470ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2023-06-21更新
|
227次组卷
|
2卷引用:河南省焦作市2022-2023学年高二下学期期末数学试题
解题方法
9 . 已知函数
.
(1)求
的单调区间;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885020fe1f6613a6d675ef251cb3901c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58427d5aa7deeca47c8789241913f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fe53dfd07f893cf49d7a63ae1af4f7.png)
您最近一年使用:0次
解题方法
10 . 已知函数
.
(1)若
,求
的极值;
(2)
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468e6bce6fdc31e24314d547a411ef76.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bad5c8a4e4bad474651c0a61de820ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2cbbf4d5b8ecbfccc5de39781396d07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次