解题方法
1 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a951ec9902b066e7aac15c2c4a4ebe3.png)
(1)当
时,求
单调区间;
(2)当
时,
恒成立,求
的取值范围;
(3)设
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a951ec9902b066e7aac15c2c4a4ebe3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7091d529281abff275ef19b9197445a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c61a450b5c1c412aca3294e9eb4e9874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7306f4a277e5f4189ba4f7502e3f0d1.png)
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2 . 已知双曲线C:
.
(1)若点P在曲线C上,点A,B分别在双曲线C的两渐近线
、
上,且点A在第一象限,点B在第四象限,若
,
,求
面积的最大值;
(2)设双曲线C的左、右焦点分别为
、
,过左焦点
作直线l交双曲线的左支于G、Q两点,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
(1)若点P在曲线C上,点A,B分别在双曲线C的两渐近线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4d488d56b95a44a6b0b40d3e89c010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184459410405a907798a625760c0d717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(2)设双曲线C的左、右焦点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b0a9cb7508e55d86f6120b5b14f1fb.png)
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2023-03-15更新
|
925次组卷
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2卷引用:湖南省长沙市第一中学2023届高三下学期月考(七)数学试题
3 . 已知函数
,
.
(1)当
时,求函数
的单调区间;
(2)若
,设直线l为
在
处的切线,且l与
的图像在
内有两个不同公共点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6d583ddcbfc1b8d6a7ccbbdb7a8f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffd1f6bd3686a07efa4086a02b96a9a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e9387c6375883b9fdd92aceabf4dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9945346a0127e2bd8e8034438f81676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
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2023-03-13更新
|
1255次组卷
|
3卷引用:重庆市2023届高三第七次质量检测数学试题
4 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)若
有3个零点
,
,
,其中
.
(ⅰ)求实数a的取值范围;
(ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e4c1bc15845013a87ca069d9ef2a32.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827bae318830f1404dfaebf6e5d169df.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/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
(ⅰ)求实数a的取值范围;
(ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400f99c9807d08a1c3f3adb0101ea21f.png)
您最近一年使用:0次
名校
5 . 已知函数
.
(1)求
的单调区间:
(2)若
有两个零点
,求a的取值范围;
(3)当
时,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb52e4be56256cd59af5c850a4c752c.png)
(1)求
![](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/8ce7ae90d808f05e86ea063238e4b2f9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d38919c6e5901e23544c419a1f4dbf9.png)
您最近一年使用:0次
2023-03-03更新
|
601次组卷
|
3卷引用:江苏省泰州市靖江高级中学2022-2023学年高二下学期第一次调研测试数学试题
名校
6 . 已知
是自然对数的底数,函数
,直线
为曲线
的切线,
.
(1)求
的单调区间;
(2)求
的值;
(3)定义
函数
,
在
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12c6f53093c3266b2fecb610e0bc219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a27c31d57a84a5928898de139cb40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfc6adb92436ae6ec9972212e567009.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec4c736aa63adafd00feafdb49dff17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82397daa18bc3d884fdd29a7f0228453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92273bc00f675df7c92c2d2d71fb6968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)当
时,求
的单调区间;
(3)若对任意
,
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5277f1862dd51c953084242775c5979.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b491f4deb98a15e7794f4d1d51234bf3.png)
您最近一年使用:0次
2023·全国·模拟预测
8 . 已知函数
,
.
(1)当
时,讨论函数
的单调性;
(2)若函数
在
上不单调,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830de7ba07322a1870d9e3f92435f502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0954595ca0a32d2654e971f9686b7cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
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9 . 定义在
上的函数
的导函数为
,且
,若
,
,
,则下列不等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae4a2b3998705e51dbade9ada0873b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262185219d5a51d5241289438ba455b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911ca325b8a1419c03e5e493418a1042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194b902dbff221194b247d1e9df02e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e9f845260ff51d80e6fca93edad5db.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-02-14更新
|
2029次组卷
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5卷引用:四川省营山县第二中学2023届高三第六次高考模拟检测数学(理科)试题
四川省营山县第二中学2023届高三第六次高考模拟检测数学(理科)试题四川省部分学校2022-2023学年高三下学期大联考理科数学试题(已下线)第二章 导数与函数的单调性 专题二 导数与抽象函数的单调性 微点1 导数与抽象函数的单调性(一)——初等型(已下线)第三章 利用导数比较大小 专题二 同构抽象函数比较大小 微点1 构造抽象函数比较大小(一)——初等型陕西省2024届高三上学期第一次联考理科数学试题
解题方法
10 . 已知函数
,
.
(1)求
的单调区间与最值;
(2)若存在
,使得不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8a40dc05978ed607ffa4cefa5a9834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffa28c7f519c1c85c0a3cad23b2e6cb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c517950e7b40e1302d01665f1bbeba69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5316ebebbc80ef612fa606f92367125c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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