名校
解题方法
1 . 已知函数
.
(1)若曲线
在
处的切线
与直线
垂直,求实数
的值;
(2)当
时,不等式
对任意
恒成立,求实数
的取值范围;
(3)当
时,求证:存在实数
,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b79477a3ea39afb0b0a355da63450c6.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9315b85140f138a28c6c9636a48bc441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cfc7f05de73d4c0c2b5bc2e0560e65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f391eb1348d7e749caecf0b47ae056.png)
您最近一年使用:0次
名校
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb10f8ecb4ec7d3136bc662867968f2.png)
(1)若
求曲线
在点
处的切线方程.
(2)若
证明:
在
上单调递增.
(3)当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb10f8ecb4ec7d3136bc662867968f2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20439836def79ea69d967d95e81320a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87676cc3ca413d9ba64fab2cd45c909c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec994bb92d9945a4369f1215d859ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-05-08更新
|
373次组卷
|
4卷引用:甘肃省白银市2023-2024学年高二下学期5月期中考试数学试题
名校
解题方法
3 . 已知函数
.
(1)若
在
上单调递增,求
的取值范围;
(2)若
有2个极值点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604366fe4c2eed6b0b56f5f530221b5c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd9be2b0d2a46f45b29c391a6c93832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b002da4ece8f56f40e3b16e84fb048.png)
您最近一年使用:0次
2024-02-20更新
|
1099次组卷
|
5卷引用:甘肃省部分学校2024届高三下学期2月开学考试数学试题
甘肃省部分学校2024届高三下学期2月开学考试数学试题河南省九师联盟2024届高三上学期2月开学考试数学试卷内蒙古自治区赤峰市松山外国语学校2024届高三下学期开学考试数学(理)试题四川省成都市第七中学2024届高三下学期5月模拟考试文科数学试题(已下线)第19题 利用导数证明双变量不等式(高二期末每日一题)
名校
解题方法
4 . 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
|
218次组卷
|
2卷引用:甘肃省武威第六中学2023-2024学年高三下学期第五次诊断数学试卷
解题方法
5 . 设函数
,
(1)证明:
.
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7504ce5f5e982f68ef0a41826d9432d0.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85187c85826beeca12137805293fff77.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d4a677b734a48f8116d67afceead44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6623e1b554d267905a98596a272f89f1.png)
您最近一年使用:0次
解题方法
6 . 已知函数
,e为自然对数的底数.
(1)证明:
;
(2)若
恒成立,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5020bb4ea60b44d0da622faa6c5e3ff.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976121b4d2ff0dcefd59751f2cdbac53.png)
您最近一年使用:0次
2023-10-15更新
|
394次组卷
|
2卷引用:甘肃省兰州市第五十八中学教育集团2024届高三上学期建标考试数学试卷
名校
7 . 若
时,函数
取得极大值或极小值,则称
为函数
的极值点.已知函数
,其中
为正实数.
(1)若函数
有极值点,求
的取值范围;
(2)当
和
的几何平均数为
,算术平均数为
.
①判断
与
和
的几何平均数和算术平均数的大小关系,并加以证明;
②当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c18b8de6c7eb43276a04f94c3c86e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eee411aceac3fe67a2baae3bfb17f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be423b2718619420c6545d02b6070a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f0f24d3528e467f3978cd4422433e2.png)
①判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce088a946b9934e891fb4ca0657a0df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
您最近一年使用:0次
2024-03-03更新
|
878次组卷
|
5卷引用:甘肃省天水市第一中学2023-2024学年高二下学期4月学段检测数学试题
名校
解题方法
8 . 已知函数
是自然对数的底数.
(1)若
,证明:
;
(2)若关于
的方程
有两个不相等的实根,求
的取值范围;
(3)若
为整数,且当
时,不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d6b43fc556c4b205abba37fc4a0dc9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5967cc62862986840af4dd29df4bcc41.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa757c82f454fe33f592264a7e4d08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04391464f10c513e23be28dc5eeff88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d347d5b8729ddc0417eb8eb0a13c7218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
9 . 已知
.
(1)求证:当
时,
;
(2)若对于
,
恒成立.
①求
的最大值;
②当
取最大值肘,若函数
,求证:对于
,
,恒有
(
为自然对数的底).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009f8b85632527466dd38980e8d1e280.png)
(1)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3e321b0932323e063aa03470db808b.png)
(2)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c7572463225bb3b65cb371f4496440.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85cce450964526c304b42fcfafa4d2cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3881fa7fc347ccb2d46de69dc041907d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e1b2fc3d27f0953c953a4cbad2c199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcfd1482d3f2e4cc68850497d952e465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
您最近一年使用:0次
2023-03-30更新
|
237次组卷
|
4卷引用:甘肃省2023届高三第一次高考诊断理科数学试题
名校
解题方法
10 . 微积分的创立是数学发展中的里程碑,它的发展和广泛应用开创了向近代数学过渡的新时期,为研究变量和函数提供了重要的方法和手段.对于函数
在区间
上的图像连续不断,从几何上看,定积分
便是由直线
和曲线
所围成的区域(称为曲边梯形
)的面积,根据微积分基本定理可得
,因为曲边梯形
的面积小于梯形
的面积,即
,代入数据,进一步可以推导出不等式:
.
;
(2)已知函数
,其中
.
①证明:对任意两个不相等的正数
,曲线
在
和
处的切线均不重合;
②当
时,若不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78e5de9b684beb1bafc89efd5af8b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644ba16341e356b57ea153e840555290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb9e8df0db7e14434837c5ad77f27e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe83f1ae7e5f05d8bed6bf6f42db0e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e02b3995488ad13babd4eeb6f99c40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe83f1ae7e5f05d8bed6bf6f42db0e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe83f1ae7e5f05d8bed6bf6f42db0e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b601337ff73bafe04fc3e40d0061fddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef73511ddedc2ab4b5bf17500554971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422f124d4c171787c292326b1d1c655c.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6c7daa90a08a84c1fe48d29ffe86e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe52e15d70c4355d101d333f8e6dc258.png)
①证明:对任意两个不相等的正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24a2c53e3b0b1c08803e95419f909d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecaca8409b3f51d22667a14559c58ea4.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d64909edca036b1463f214d977604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-03-13更新
|
1675次组卷
|
6卷引用:甘肃省兰州市2024届高三下学期三模数学试题
甘肃省兰州市2024届高三下学期三模数学试题湖北省七市州2024届高三下学期3月联合统一调研测试数学试题安徽省淮南第二中学2023-2024学年高二下学期期中教学检测数学试题(已下线)湖北省七市州2024届高三下学期3月联合统一调研测试数学试题变式题16-19湖南省长沙市周南中学2024 届高三下学期第二次模拟考试数学试题河北省正定中学2024届高三三轮复习模拟试题数学(二)