名校
1 . 不等式
恒成立,则实数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d115c5b723267d593b857558d30e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.1 | D.2 |
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解题方法
2 . 在函数极限的运算过程中,洛必达法则是解决未定式
型或
型极限的一种重要方法,其含义为:若函数
和
满足下列条件:
①
且
(或
,
);
②在点
的附近区域内两者都可导,且
;
③
(
可为实数,也可为
),则
.
(1)用洛必达法则求
;
(2)函数
(
,
),判断并说明
的零点个数;
(3)已知
,
,
,求
的解析式.
参考公式:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955689923ebe1be46168295644f4a178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef9c42b3bfeac3b11f6f2f7c5227967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7490f915131bdb436285e3fb284817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba30ad5f21a62879bba0aee45b81507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e530f639eaa27858ed7db451e2ed576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4658c5369aa8a25ea8580f524e87da.png)
②在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf90c83ba8da83994264cb5b8b2f15f4.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56af5e590e8152c9a7ded6209e446ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de3f06b6df7b949c5e6b406a661079f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f32baa7d29934cde8a5203388ed18c6.png)
(1)用洛必达法则求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/782ec35f212cb1448863b4b15e806814.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161ab6e6a97905ea5bb2b3fc390ab7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deda945164283569437cda6976fe35ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddd2a1b30b9ad891172f7f21c5a2701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc2b7be871fef904c94ef6360ee32bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f385eacc118fe9b5f0c23182929d6a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
参考公式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9005b464218c70a9963452693645cf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9949db821a880972efbfb32354cd6bd.png)
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2024-04-24更新
|
802次组卷
|
5卷引用:专题14 洛必达法则的应用【练】
(已下线)专题14 洛必达法则的应用【练】2024届河北省邢台市部分高中二模数学试题(已下线)模块4 二模重组卷 第3套 全真模拟卷河南省郑州市宇华实验学校2024届高三下学期5月月考数学试题河北省衡水中学2023-2024学年高三下学期期中自我提升测试数学试题
名校
3 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)设函数
,若曲线
不在
轴的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073639ae52cd422a11599bd8a2f0e73e.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9bf95ecd96ff60e9966022a93c85b4.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6b409760d56bf1de7b7d0ca18bb995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ed26c227174a60f314a7946e9d7f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024高三·全国·专题练习
4 .
为抛物线
的弦,
,
分别过
作的抛物线的切线交于点
,称
为阿基米德三角形,弦
为阿基米德三角形的底边.若弦
过焦点
,则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea1ce7588f88b39746159233be9cd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c663466d641b5fdfef1e529d6c330ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166afeb61d5a80366a8ae29c912cd644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4b0c4b339f44bbac0e275eb0718234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() |
B.底边![]() ![]() |
C.![]() |
D.![]() ![]() |
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解题方法
5 . 已知
在
有两个极值点
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b68edf2fd786729f1b1d53f97b38cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad3debdd908cb409c117f6ce8686169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
6 . 若不等式
在
时恒成立,则实数
的值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb758d9dd1005de729cee2abab54957c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c77befb23ddbca57b9c341f5b9412e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.2 |
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2024-01-25更新
|
629次组卷
|
8卷引用:专题01 一元函数的导数及其应用-4
(已下线)专题01 一元函数的导数及其应用-4江苏省盐城市2023-2024学年高二上学期1月期末联考数学试题(已下线)专题4 导数在不等式中的应用(B)山东省泰安市第一中学2023-2024学年高二下学期3月月考数学试题(已下线)模块一 专题4 《导数在不等式中的应用》B提升卷(苏教版)(已下线)模块一 专题6 导数在不等式中的应用B提升卷(高二人教B版)福建省福州市第十五中学等五校2023-2024学年高二下学期期中联考数学试题山东省济宁市泗水县2023-2024学年高二下学期期中考试数学试题
名校
7 . 已知
,若存在实数
(
),当
(
)时,满足
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c717019f88281553c6407a917870513a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db09e9844b90e46a6f2f5a710b6a3451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10890ebb2e6e7de85ad3001e327fd1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6032aee742b136f8ea08073426fcb2d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cf24c351d5a52930cf33d772a819f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4ea4438bf56ab20d12b2d050f298d7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-12更新
|
533次组卷
|
6卷引用:【一题多变】函数零点问题
(已下线)【一题多变】函数零点问题(已下线)【一题多变】函数零点问题1(已下线)2024年高考数学二轮复习测试卷(新高考Ⅰ卷专用)(已下线)第07讲 函数与方程(十一大题型)(讲义)-2陕西省渭南市2023-2024学高三上学期教学质量检测一(一模)文科数学试题湖南省株洲市第二中学2023-2024学年高三下学期开学考试数学试卷
8 . 已知函数
,若函数
的图象在
处的切线平行于
轴,且
、
是函数
的图象上任意两个不同的点,设直线
的斜率为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74da4b06c434c46d5a8958ad77f2592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad9a4881ebe1a4a566d0fab96d71baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b4fb8ee19381308693c1bd9757bed6.png)
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2023高三·全国·专题练习
9 . 已知函数
,
.
(1)讨论
的单调区间;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3c53e08545a3fb2094d5acb9bf759c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbf385012a357665896ed5f46364391.png)
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10 . 已知函数
和
有相同的最小值.
(1)求
;
(2)是否存在直线
,其与两条曲线
和
共有三个不同的交点且从左到右的三个交点的横坐标成等差数列?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef96ff936eb415b1f8fe6b9166d8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c68ab4181ffc22679c971eed6d8286.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af79f45b5880c72a349500da9d8e118d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
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