名校
1 . 已知函数
若
有4个零点,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4661b10dd67c0dd8d80ebbbd8267ceea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bac6f901eef711a9c08de8fc3abc09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知
,下列四个结论:①
,②
,③
,④
.其中错误的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1bb486cbf98ae341a35a17e79fae7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b0e6eb011614deef2d50ceab01c8d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e0b26fa1a2c42bf24833e241ea25a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec504e75b5fe6435a94047a2f0b9443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dd82388f903f53c58ff6d655dd7d14.png)
A.1 | B.2 | C.3 | D.4 |
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解题方法
3 . 定义在
上的函数
满足
,
(若
,则
,c为常数),则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0a028f1d7bffc087f345909ddbb498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4915a7b17389ab1238077f4c4ee8f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fa3246d1f5f3859c61f03f3387cd0a.png)
A.![]() |
B.![]() ![]() ![]() |
C.![]() |
D.若![]() ![]() ![]() |
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解题方法
4 . 若不等式
在
上恒成立,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffcfff3f9f46e07ec6b88b3e7bde90e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.1 | D.![]() |
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5 . 已知函数
,若
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c94fc8c38cedaf1a4a3bed097e1217a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffdd698561611c842b635ce4ecdbeb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知函数
的导函数为
,且对任意的实数
都有
(
是自然对数的底数),
,若不等式
的解集中恰有1个整数,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a53de2e60c85b2044ed87efc5b76b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59f8763e84253fb045d5938c99b6870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0326c62efc8d1dec3b8b9be3acb14c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcebee4d84fec4a07e5a9c2004869f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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7 . 已知函数
.
(1)讨论
的单调性;
(2)若
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e240a5e97a7c1b55cf69946c4dc553.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d197dd0adef956d012dc96f8dc0846d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8卷引用:江西省部分学校2023-2024学年高二下学期第二次月考(5月联考)数学试题
江西省部分学校2023-2024学年高二下学期第二次月考(5月联考)数学试题河北省秦皇岛市卢龙县2023-2024学年高二下学期5月考试数学试题内蒙古开鲁县第一中学、和林格尔县第三中学等2023-2024学年高二下学期5月月考数学试题内蒙古名校联盟2023-2024学年高二下学期教学质量检测数学试题河北省保定市部分学校2023-2024学年高二下学期5月期中考试数学试题(已下线)期末模拟卷-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(天津专用)(已下线)专题09 导数与零点、不等式综合常考题型归类--高二期末考点大串讲(人教B版2019选择性必修第三册)(已下线)核心考点3 导数的应用(恒成立,不等式,零点) B提升卷 (高二期末考试必考的10大核心考点)
名校
8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d8fb0f2f65778f8f3e8f9509e77740.png)
(1)讨论
的单调性;
(2)当
时,若
恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d8fb0f2f65778f8f3e8f9509e77740.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de35b2de0ac0a538b91b43bf6cbf3452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4卷引用:山西省忻州市2023-2024学年高二下学期5月联考数学试题
名校
解题方法
9 . 已知函数
.
(1)若函数
在
上单调递减,求实数
的取值范围;
(2)若函数
有两个极值点
,
,
①求实数
的取值范围;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0554a7c12abe88262327d65e9289a9f8.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ccba65da7c189cad6dfa9f6a5c82f7.png)
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2卷引用:四川省内江市资中县第二中学2023-2024学年高二下学期5月月考数学试题
名校
10 . 若函数
存在零点
,函数
存在零点
,使得
,则称
与
互为亲密函数.
(1)判断函数
与
是否为亲密函数,并说明理由;
(2)若函数
与
互为亲密函数,求
的取值范围.
附:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6cf17ce69359ec8ccf933ad8357a53d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db18e638db2fb367cfe10bfaee37229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e60075f5d53066c03f106346dada26.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca6aff55f526b90cf606b04c9985c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c25df9ceeca0a576686820cb294ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
附:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c292239a48d1475428eeb9863d5dceb.png)
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