名校
1 . 已知函数
.
(1)求证:当
时,
;
(2)求函数
在
上的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb35baa6699789980bfffab1fb177259.png)
(1)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386ae87ae0120e27b4c2709c0fb7298c.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32527800720dee6e69faa12da34d174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69b63f7a252dadfdae43b4d9c3bb5.png)
您最近一年使用:0次
2 . 已知函数
.
(1)若不等式
有解,求实数
的取值范围;
(2)若
有两个不同的零点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef889b4685f91ee649e927747c91862.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4091973f9ac170d4289b830d5db23825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a6ddb8ec5abc0a8ee18ba4f5cbf717.png)
您最近一年使用:0次
名校
3 . 已知函数
.
(1)若
,求
在
处切线方程;
(2)求
的极大值与极小值;
(3)证明:存在实数
,当
时,函数
有三个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01df19fba2e401940e7782ecd33d3cdc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)证明:存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cca25c55439061f242478afab26422d.png)
您最近一年使用:0次
2023-05-30更新
|
1913次组卷
|
11卷引用:河北省石家庄市北华中学2024届高三上学期期末数学试题
河北省石家庄市北华中学2024届高三上学期期末数学试题北京市师大附属中学2023届高三适应性练习数学试题北京市海淀区北京大学附属中学2023届高三三模数学试题(已下线)专题突破卷07 导数与零点问题北京市第一零一中学2023-2024学年高三上学期数学统练五(已下线)专题19 导数综合-1北京市海淀区北京大学附属中学预科部2023-2024学年高三下学期3月阶段练习数学试题广东省广州市广雅中学2024届高三下学期教学情况检测(三)数学试题(已下线)专题2 导数(4)(已下线)模块一 专题5 导数及其应用 2 (北师大2019版)山东省新泰市第一中学东校2022-2023学年高二下学期第二次质量检测数学试题
4 . 已知函数
.
(1)若
,求
的极值;
(2)若函数
有两个零点
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c5642c1d3543821a10c2a8b054d502.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1545a67f331743bb20f3e49fb0053b.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/4dce65a293adb41ae406ee0d1308311e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4255085aa2deadc87ca74590379ac32.png)
您最近一年使用:0次
5 . 已知函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a254c900435d632b0fc5c632556cd1.png)
A.![]() ![]() ![]() |
B.![]() |
C.若函数![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次
2023-05-22更新
|
822次组卷
|
4卷引用:河北省正定中学2023届高三模拟预测(二)数学试题
6 . 已知函数
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1d897bf1170f96cac0c36823a512a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5c8ad2680f67eeb4c13feedaa3c90f.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
解题方法
7 . 已知函数
.
(1)证明:当
时,
有唯一的极值点为
,并求
取最大值时
的值;
(2)当
时,讨论
极值点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6082bf1807875c773bc866e08d3e6bf1.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef118cce5443a4d794561f5ef8e1fcc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7417645b760b0e03cfe0bcdaa6a1d93e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
8 . 已知函数
,
,
为自然对数的底数.
(1)证明:函数
存在唯一的极值点
;
(2)在(1)的条件下,若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d287924b2a13a9e70ecb6df4fcc6e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea3ed7016dffc724e898215cd5b1451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45eb31740fad26b78de0fa3044535c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae276bd9ca7eef06f9df7be037ade7f.png)
您最近一年使用:0次
9 . 已知函数
,
.
(1)若函数
,求
的最小值;
(2)证明:函数
在
上有唯一零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d9beec2dd37d6ba7e14b6f83ebf46e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ad8175214b7ae238425e65c09a2db1.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d55f34561b6ebcd606be4e5bc30e336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f61b64df10c9e1698eb90504a9543f.png)
您最近一年使用:0次
10 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若函数
在
与
上各有一个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b36dd6e09858637266235cfa18c579b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次