1 . 已知函数
.
(1)当
时,求证:
;
(2)证明:
在
上单调递减;
(3)求证:当
时,方程
有且仅有2个实数根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04557ab042ce57739d7e3da3aa98494b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffd1f6bd3686a07efa4086a02b96a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2b75051479c8bd96402038bea4ec12.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de2ddd34bd03fccd33fb45335bdae36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72728cdc6b1c5521eeba55ca804d2d74.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8665030cbc65785846edb65e62e5652e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99cbcd39135251eff7c9e7e7a37e232.png)
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2 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若函数
有两个不同的零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c167425a8e7a32c81148fe94d21cb4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec5d9f8f203c6c9ad3b2f53d09d0be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 已知函数
,
.
(1)若
,求曲线
在点
处的切线方程;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7631eacbd97041b3d6af865ca301733b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知
,
,设函数
,其中
为自然对数的底数,
.
(1)当
时,证明:函数
在
上单调递增;
(2)若对任意正实数
,函数
均有三个零点,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b675de7832123ecef7c62c41b75868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45d6b39d2f63a4d5cc9b1e40c90ff6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051b07f6c5ab13a5df7607ef22850b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)若对任意正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
5 . 函数的图象大致为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-06-30更新
|
249次组卷
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4卷引用:陕西省安康市2022-2023学年高二下学期6月期末理科数学试题
陕西省安康市2022-2023学年高二下学期6月期末理科数学试题陕西省安康市2022-2023学年高二下学期期末文科数学试题(已下线)第10讲:导数期末题型突破(单调性、不等式、零点、恒成立)(已下线)模块一 专题3 导数在研究函数极值和最值中的应用(B)
6 . 已知函数
.
(1)讨论
的单调性;
(2)若
与函数
的图象有三个不同的交点,求
的取值范围.(参考数据:
.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d6a8ac28b3a90298cc930064efa6e3.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/88e1ebf726424e476f2ebf169381381e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3caa37456ad465972bea16d93d02e1ee.png)
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2023-06-28更新
|
731次组卷
|
5卷引用:陕西省安康市2022-2023学年高二下学期6月期末理科数学试题
陕西省安康市2022-2023学年高二下学期6月期末理科数学试题湖北省十堰市2022-2023学年高二下学期6月期末数学试题新疆兵团地州学校2022-2023学年高二下学期期末联考数学试题吉林省白山市六盟校2022-2023学年高二下学期期末联考数学试题(已下线)第二章 导数与函数的单调性 专题一 含参函数单调性(单调区间) 微点2 含参函数单调性(单调区间)(二)——导主超越型
名校
7 . 已知函数
(e
是自然对数的底数),
是
的导数,
.
(1)求
的单调区间;
(2)证明:对任意的
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf145ebec879cae6e57033f8f454752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a65eb9723083241f68418ea2d1e60ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d2465545c1893404781463bd86636a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69878c4fa51ad3f1e3f5da26744a967c.png)
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2023-06-28更新
|
243次组卷
|
2卷引用:陕西省西安市长安区第一中学2022-2023学年高二下学期期末文科数学试题
名校
8 . 已知函数
,
,其中
.
(1)证明:
;
(2)讨论函数g(x)的单调性;
(3)数列
满足
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c24b58dc9e82b38b54be9e1e0cbf93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)讨论函数g(x)的单调性;
(3)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13e698080c8a5aac1cd7776e612b6e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf5045a8ffee512b723492205a08897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3360833401d932ae800aefe4ae8f24.png)
您最近一年使用:0次
名校
9 . 我们比较熟悉的网络新词,有“
”、“内卷”、“躺平”等,定义方程
的实数根
叫做函数
的“躺平点”
若函数
,
,
的“躺平点”分别为
,
,
,则
,
,
的大小关系为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6b31b9a86d8b5b9d3c42a63f4d07a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acd884552ee3aaecf68b8dca5a41e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f952ed6de5a20e2ad4fc7d56305855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d477da1aa506d30a5f7381af4140094a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104e01e180ca638ebd9b84781901b3a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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2023-06-27更新
|
661次组卷
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7卷引用:陕西省西安建筑科技大学附属中学2022-2023学年高二下学期期中理科数学试题
陕西省西安建筑科技大学附属中学2022-2023学年高二下学期期中理科数学试题北京市海淀区中国人民大学附属中学2022-2023学年高二下学期期中数学复习试题(1)安徽省定远中学2022-2023学年高二下学期6月第二次阶段性检测数学试卷(已下线)模块二 专题2 导数 B提升卷(人教A)黑龙江省大兴安岭实验中学(东校区)2022-2023学年高二下学期期末数学试题辽宁省沈阳市第一二〇中学2023-2024学年高三上学期第一次质量监测数学试题(已下线)第三章 重点专攻三 函数零点问题(B素养提升卷)
10 . 已知函数
(
是自然对数的底数)过坐标原点,
是函数
的唯一极值点.
(1)求
、
的值;
(2)若不等式
在
上恒成立,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b736a71d31c5a171ad47e68a9b04f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bc5c73d890b81721e8d5342583b6ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9b81feb84ce1523ae97d5bff2c4072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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