名校
解题方法
1 . 已知函数
.
(1)
在定义域内单调递减,求
的范围;
(2)讨论函数
在定义域内的极值点的个数;
(3)若函数
在
处取得极值,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7c6dbd23c3a97ca565293fa527a43c.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c2d34cb1ea0cf34812cd7bf01a37b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,
,
.
(1)若函数
在
上单调递增,求
的取值范围;
(2)若关于
的方程
有两个实根
,
(i)求
的范围;
(ii)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4784338464ebd7b72876659bcb2df179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020d756192f4dc7939f3b73891ced2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c34a0d539a1a149edfd5b6c2e3dfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ed1edfb1823ff324796448f20bd690.png)
您最近一年使用:0次
名校
解题方法
3 . 关于函数
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a903745cd2cb536443d07579b606ece5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681d6d27b23b1c41834d7516122f73f9.png)
A.若过点![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若函数![]() ![]() ![]() |
您最近一年使用:0次
2024-02-27更新
|
1158次组卷
|
5卷引用:湖南省岳阳市平江县颐华高级中学2023-2024学年高二下学期入学考试数学试题
名校
解题方法
4 . 已知
.
(1)若
在
恒成立,求a的范围;
(2)若
有两个极值点s,t,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7da9eb2cdd67177dc3b0f615c7c7a19.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad491390dd1b066b3e819e11ef1ac4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48e85d79f939f2a62255794041b3722.png)
您最近一年使用:0次
2024-02-27更新
|
927次组卷
|
4卷引用:山东省部分名校2023-2024学年高三下学期2月大联考数学试题
名校
5 . 已知函数
.
(1)
是
的极值点,求
的取值;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ffeaceb6dc51f0b74a7ca3f5748363.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
6 . 已知函数
,其中
为实数,
为自然对数底数,
.
(1)已知函数
,
,求实数
取值的集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)已知函数
有两个不同极值点
、
.
①求实数
的取值范围![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1203188d4eaea4984f479bd289a48a48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9003a22f3bfbdc2dba7869c0f7d54c8c.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6944b7c8a4a4f049389742729e6e854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c013dd461282a9677073747d55f685.png)
您最近一年使用:0次
2023-02-14更新
|
809次组卷
|
3卷引用:湖南省四大名校名师团队2023届高三普通高校招生统一考试数学模拟冲刺卷(一)
名校
7 . 已知函数
.
(1)若函数
在定义域内单调递增,求实数
的范围;
(2)若实数
,求
的单调递增区间;
(3)若函数
有两个极值点
且
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075966b597ea85273ffbb7ddcedca7cf.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d1eec645764636c0e23b05e8f93234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9601f47c3f77d6165e1890e3e0d7e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-04-17更新
|
484次组卷
|
2卷引用:江苏省无锡市太湖高级中学2022-2023学年高二下学期期中数学试题
名校
8 . 已知函数
.
(1)若函数
只有一个零点,求实数a的取值所构成的集合;
(2)若函数
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2636e30c59d129540dad671e0b48f6a.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf9001264cea023e9f1a7cf52f61e97.png)
您最近一年使用:0次
2022-10-08更新
|
584次组卷
|
8卷引用:广东省广州市天河区2023届高三一模数学试题
名校
9 . 设
为实数,函数
,
.
(1)若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec650b76fcd62342ca451d683258f16.png)
轴有三个不同交点,求
的范围
(2)对于
,
,都有
,试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020f9d88ac45acd29272b9412c886f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1495821fad209346487928e0429f742.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec650b76fcd62342ca451d683258f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d93f4c9a58325668a7a97ac88bc813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/214d5b7e333f546dcf4c14dcf8462648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-05-30更新
|
768次组卷
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4卷引用:吉林省延边朝鲜族自治州延边第二中学2021-2022学年高二下学期期中数学试题
吉林省延边朝鲜族自治州延边第二中学2021-2022学年高二下学期期中数学试题(已下线)专题07 不等式恒成立问题(已下线)专题07 不等式恒成立问题-2吉林省延边朝鲜族自治州延边第二中学2022-2023学年高二下学期第一次阶段检测数学试题
名校
10 . 关于函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25145de4e581b044fb51e3901b0a11d1.png)
A.若过点![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若函数![]() ![]() ![]() |
您最近一年使用:0次
2022-07-26更新
|
630次组卷
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2卷引用:广东省佛山市南海区狮山石门高级中学2021-2022学年高二下学期第三次大测数学试题