解题方法
1 . 已知函数
,
.
(1)讨论
的极值;
(2)若
的极小值为3,且
,
,
,
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8984b8da734b538225709a1eec785e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138fcdee616479d91ba743b65ad69fd6.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7493c0fcdc634aa03efb6be277e23769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d7efbc6c2f72683bd03414ed448fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解题方法
2 . 已知函数
.
(1)若
的最小值为0,求a;
(2)设函数
,若
是增函数,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7506e85765a8611f62f8696234740b4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b47248698c0ed25fff24ffd9eb366f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
2023-03-07更新
|
737次组卷
|
4卷引用:福建省莆田市2023届高三下学期3月第二次教学质量检测数学试题
名校
解题方法
3 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab998be853d1ac2e85c71dc19fc1a3d7.png)
(1)若
单调递增,求
的取值范围;
(2)证明:当
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab998be853d1ac2e85c71dc19fc1a3d7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f36662cb2e7e434c341d25976bdbd1.png)
您最近一年使用:0次
2022-05-28更新
|
1304次组卷
|
3卷引用:福建省福州第八中学2023届高三上学期第二次质量检测数学试题
解题方法
4 . 已知函数
(
),
.
(1)当
时,
与
在定义域上的单调性相反,求b的取值范围;
(2)设
,
是函数
的两个零点,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34449685b69dfe18b065566ea0367149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fe13941d942ae8917af15707ceeca3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd845d5b7989956bce410362fb4f974.png)
您最近一年使用:0次
5 . 已知函数
,函数
,其中实数
.
(1)求函数
的单调区间;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36036be5efe0969fad8ad778eb245ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd54ac362dde0dcebd88f93e1b38a0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17af43cc460a6a7010d51a0c9403d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
6 . 已知函数
,其中
为自然对数的底数.
(1)函数
的图象能否与
轴相切?若能与
轴相切,求实数
的值;否则,请说明理由;
(2)若函数
在
上单调递增,求实数
能取到的最大整数值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8b007d1a1a9c15ae78ae329f113c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3a071e25281dee9a0ef0b75dd550c2.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc3658b6ac8f93da2da065c0a11abfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-04-29更新
|
207次组卷
|
2卷引用:福建省莆田第六中学2017届高三下学期第二次模拟数学(理)试题