名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb8a14084336e3f14d24e97379dbe8e.png)
(1)讨论函数
的单调性;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb8a14084336e3f14d24e97379dbe8e.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e546592cea4eb8cfe06cae977f547791.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcf90ea66c069011ce0561f08fc187e.png)
您最近一年使用:0次
2017-05-21更新
|
1635次组卷
|
10卷引用:山西省临汾第一中学2017届高三全真模拟数学(理)试题
山西省临汾第一中学2017届高三全真模拟数学(理)试题山西省孝义市2017届高三下学期高考考前质量检测三(5月模拟)数学(理)试题(已下线)2020届高三12月第01期(考点03)(文科)-《新题速递·数学》(已下线)2020届高三12月第01期(考点02)(文科)-《新题速递·数学》四川省泸州市泸县第二中学2019-2020学年高三下学期第二次月考数学(文)试题四川省遂宁市射洪中学2020届高三下学期第二次月考数学(理)试卷四川省泸州市泸县第二中学2019-2020学年高三下学期第二次月考数学(理)试题四川省遂宁市射洪中学2020届高三下学期第二次月考数学(文)试题(已下线)第36讲 指对函数问题之分离与不分离-突破2022年新高考数学导数压轴解答题精选精练(已下线)专题9 利用放缩法证明不等式【讲】
解题方法
2 . 已知函数
.
(1)求
在点
处的切线方程
,并证明
;
(2)若方程
有两个正实数根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ba7f6650a47610941b3ce55b896afe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c887da0c850acf41ab249cc262ae39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdda91b3f668548adb7ea3b66759f99.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca222b41bc1a04389365b9c06ef55008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb94fb3646feaf8ef62e76184c1a2655.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)求曲线
在原点处的切线方程;
(2)若
恒成立,求实数
的取值范围;
(3)若方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9ea1797994ecef2c0115a587666fff.png)
有两个正实数根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ba7f6650a47610941b3ce55b896afe.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a31bcec69422c4668ff0bdfde47465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9ea1797994ecef2c0115a587666fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3911a0f23c479a6a89cbcc5c3d3fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb94fb3646feaf8ef62e76184c1a2655.png)
您最近一年使用:0次
4 . 已知函数
.
(1)讨论函数
的单调区间;
(2)若
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e465d75e30510d7f3f343a1eaeead24.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ccb692a97ea01b9847bb3401f8a6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79d98acfc3c360265ef06f9e0c81ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-05-03更新
|
519次组卷
|
2卷引用:山西省临汾一中、忻州一中、长治二中、康杰中学2016-2017学校高二4月联考数学(理)试题
5 . 已知函数
.
(1)若曲线
在点
处的切线与曲线
的公共点的横坐标之和为3,求
的值;
(2)当
时,对任意
,使
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2dcee7e3151f3e58d0509c04fec4e8.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983f1213ce474227e80c41d7fba6374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f88a76f947e7022ef0c5efd6db060c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8311315b1ed5535f374125fe4a4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6038f1b0f1860b56cd62f397ad77a770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
6 . 已知曲线
在
处的切线方程为
.
(1)求
的值;
(2)若对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47b9038a735f442e368aa1e98c2fe7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315603315daa7a07636bea22383193fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7 . 设
:
,在
上
恒成立;
:函数
在其定义域上存在极值.
(1)若
为真命题,求实数
的取值范围;
(2)如果“
或
”为真命题,“
且
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb655576959c111c8691df734dd6013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2501720149908efa11f777f9327aa754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3417699eb4a32521b7ff1f7b2a1d5f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01120011aa12ed6a77cb960614d0956.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如果“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
8 . 已知函数
的两个极值点为
,且
.
(1)求
的值;
(2)若
在
(其中
上是单调函数,求
的取值范围;
(3)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fcc30625a1a2fdf62aacf30c1960a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74cdf5dcc84c3db26a939266300d8cba.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c21eb73409580defc20c5c729cf9d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c08f896aa6245beb9af36b6b53ca8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba507e7db26467904aada0d55014b373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106157eba7b34fa8219fe5c4990121a6.png)
您最近一年使用:0次
2016-12-04更新
|
307次组卷
|
2卷引用:2017届山西临汾一中高三10月月考数学(文)试卷
9 . 记
表示
中的最大值,如
.已知函数
,
.
(1)设
,求函数
在
上零点的个数;
(2)试探究是否存在实数
,使得
对
恒成立?若存在,求
的取值范围;若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/e82c70dd3c7a478db0fc19d1fb970067.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/d5175185b8724f58968c4336b5e7c1a4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/2c82603c147f45a39bd9311b83b8a0f4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/53c501b7ee5f4e959647f55e80f9f911.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/3b9a9c5d171e434687d6f5902d6b709c.png)
(1)设
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/687fc74abfec4a6f8ab0ba6a7b1f73ca.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/029e04884c5f48cf81c092cbbb970ac4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/b17636d773bb42c5b19fd94e4b7c3201.png)
(2)试探究是否存在实数
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/ecdc04282e954a4784e23b7e182b9a94.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/e358ffa8bad047eebe13eb9ad41296de.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/ce83c9059abd48108859019fd0168192.png)
![](https://img.xkw.com/dksih/QBM/2016/11/25/1573179582693376/1573179589099520/STEM/159913d07697431bb3f1750f162230a6.png)
您最近一年使用:0次