解题方法
1 . 已知函数
,
,函数
与函数
的图象在交点
处有公共切线.
(1)求
、
的值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b1868d9850b7103e1326eb001dfbce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb1dadfa9ea87955a665aa05a7c9afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2c84e7b41a841a230ed5f8a42309aa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
您最近一年使用:0次
2021-08-26更新
|
548次组卷
|
4卷引用:2015-2016学年江西省宜春市奉新一中高二下第一次月考理科数学试卷
10-11高三上·黑龙江双鸭山·阶段练习
名校
解题方法
2 . 已知函数
.
(1)求函数
在
上的最大值、最小值;
(2)求证:在区间
上,函数
的图像在函数
图像的下方.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2965aa0c359dac3d58df69358c5028.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dacddebc1a127be502b7bdcc34ea6632.png)
(2)求证:在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70ee4f4aad038d0461ae5f7bbc43c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52284539e00aa8e9384575ca0ad3bd0.png)
您最近一年使用:0次
2020-09-10更新
|
970次组卷
|
26卷引用:2012-2013年江西省赣州市会昌中学高二下学期第一次月考文科数学卷
(已下线)2012-2013年江西省赣州市会昌中学高二下学期第一次月考文科数学卷(已下线)2011-2012学年江苏省上冈高级中学高二下学期期中考试理科数学试卷(已下线)2011-2012学年吉林省四校高二下学期期中联考理科数学试卷【全国百强校】内蒙古北方重工业集团有限公司第三中学2017-2018学年高二下学期期中考试数学(理)试题2018-2019人教高中数学选修1-1:第三章 章末评估验收(三)黑龙江省海林市朝鲜族中学人教版高中数学选修1-1同步练习:第三章 导数及其应用单元测评2018-2019学年高中数学选修2-2人教版练习:模块综合评价(二)山西大学附属中学2018-2019学年高二下学期3月模块诊断数学(理)试题【全国百强校】山西省山西大学附属中学2018-2019学年高二下学期3月模块诊断 数学(文)试题江苏省常州市2019-2020学年高二上学期期中数学试题内蒙古包头市第四中学2018-2019学年高二下学期期中数学(文)试题陕西省咸阳市百灵中学2019-2020学年高二下学期第一次月考数学(理)试题西藏自治区拉萨市拉萨中学2019-2020学年高二第六次月考数学理科试卷(已下线)5.3.2 函数的极值与最大(小)值(2)B提高练(已下线)【新教材精创】6.2.2 导数与函数的极值、最值 (2) -B提高练 山西省长治市潞城区第一中学2020-2021学年高二下学期第一次月考数学(理)试题(已下线)2011届黑龙江省双鸭山一中高三上学期第一次月考文科数学卷(已下线)2014届甘肃省兰州一中高考模拟三文科数学试卷宁夏银川一中2018届高三上学期第二次月考数学(理)试题河北省衡水市安平中学2018届高三上学期第三次月考数学(文)试题西藏日喀则市南木林高级中学2019届高三上学期期中考试数学试题西藏自治区山南市第二高级中学2019-2020学年高三上学期第二次月考数学(文)试题理西藏自治区山南市第二高级中学2019-2020学年高三上学期第二次月考数学(文)试题(已下线)专题13 导数(知识梳理)-2021年高考一轮数学(文)单元复习一遍过(已下线)专题13 导数(知识梳理)-2021年高考一轮数学(理)单元复习一遍过(已下线)专题13 导数(知识梳理)-2021年高考一轮数学单元复习一遍过(新高考地区专用)
3 . 证明不等式:
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21e715a0d10f92f03508b75a18de3ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
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2021-02-07更新
|
842次组卷
|
5卷引用:江西省余干县黄金埠中学2022-2023学年高二下学期期中考试数学试题
江西省余干县黄金埠中学2022-2023学年高二下学期期中考试数学试题人教A版(2019) 选择性必修第二册 新高考名师导学 第五章 5.3 导数在研究函数中的应用(已下线)5.3 导数在研究函数中的应用人教A版(2019)选择性必修第二次课本习题5.3 导数在研究函数中的应用(已下线)专题04 函数的极值与最大(小)值 (十二大考点)-【寒假自学课】2024年高二数学寒假提升学与练(人教A版2019)
名校
4 . 如图,点
为某沿海城市的高速公路出入口,直线
为海岸线,
,
,
是以
为圆心,半径为
的圆弧型小路.该市拟修建一条从
通往海岸的观光专线
,其中
为
上异于
的一点,
与
平行,设
.
(1)证明:观光专线
的总长度随
的增大而减小;
(2)已知新建道路
的单位成本是翻新道路
的单位成本的
倍.当
取何值时,观光专线
的修建总成本最低?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d8332bf70ea360b452b85e20a7d081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b455b110a30c1533d0a0657e0e48ac33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e4917c34a4c4e654ace35eb65f179b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d1a2622dcc55baf8be654aa85d02f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c11bda359541cd0a66450ae6848dc7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/22/6cc8f0bc-ddbb-4ec2-9b55-a226a6a27eb7.png?resizew=114)
(1)证明:观光专线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d1a2622dcc55baf8be654aa85d02f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)已知新建道路
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9382f3fa0be7e9180546910d579046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d1a2622dcc55baf8be654aa85d02f2.png)
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2020-11-20更新
|
500次组卷
|
3卷引用:江西省宜春市宜丰县宜丰中学2022-2023学年高二创新部上学期期中数学试题
解题方法
5 . 已知函数
(
).
(Ⅰ)若
在
处的切线过点
,求
的值;
(Ⅱ)若
恰有两个极值点
,
(
).
(ⅰ)求
的取值范围;
(ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a97285a2fcf8561a6ef2800275a8dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da7544af9e0d48ac4a99c8d5290f789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/26d8dafc71b106f39f4e15442220897b.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2971a80a6b4241aedbcfba18a6d3c485.png)
您最近一年使用:0次
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9d95ea41558fecff1a1fbd03f0ba01.png)
(1)当
时,求函数
的单调区间;
(2)若
,且曲线
在点
(
不重合)处切线的交点位于直线
上,求证:
两点的横坐标之和小于4;
(3)当
时,如果对于任意
、
、
,
,总存在以
、
、
为三边长的三角形,试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9d95ea41558fecff1a1fbd03f0ba01.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bc334305133ac2b4b8d21efeb3324c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.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/38e270bb104fd7104493d3ab68ca527d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550f287229d15a09caad70fec0266a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915b3d29d0c7dd83c188e3ce31f52fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be22faef62e7a035eb39a2e020c880e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120fc4b25381306ebaa4b96a7f03e6c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7 . 已知函数
图像上一点
处的切线方程为![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/4203b738cc0c41f4b62d16bc06203dc0.png)
(1)求
的值.
(2)若方程
在区间
内有两个不等实根,求
的取值范围.
(3)令
,如果
的图像与
轴交于
两点,
的中点为
,求证:
.
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/1a25e19e83184c7fa5875a833fb538a1.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/c205d79779984d2da44ff2779384db79.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/4203b738cc0c41f4b62d16bc06203dc0.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/032ac6719fd84b21a35e3e9d029312f7.png)
(2)若方程
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/e3db7372ee4e41ba871649ce3591ca72.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/dd263d407e6449719fcfc3df0411e599.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/390f00fad2ed4486960ec88f2317057c.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c023ab8c8fda3e2eb701d2901fc7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/6fc2f37e1c2b4fb985b1b714efbe2fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523e5a8a2f86c8ea34a109ebe5c1cfc2.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/8226f76f1b004ca1a7c4c814245ab1fd.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/c79b10e5c5f541fa92faeae2c454b7d6.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572676781760512/1572676787437568/STEM/c2477c5d9f2a480ea364d30d35907f99.png)
您最近一年使用:0次
12-13高二上·宁夏银川·期末
8 . 已知函数
且
在
上单调递增,在
上单调递减,又函数
.
(1)求函数
的解析式;
(2)求证当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62552a2a04199025011d6e23492a93f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ca5d6591093ec22059565638e33e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca885f11a5672c31d6325e1efe9f9ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41131a76282b4fe09d65c5a756b59d0.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16688590aa75a979cc269d934f1bf899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
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2016-12-01更新
|
1434次组卷
|
3卷引用:江西省南昌市新建区第二中学2022-2023学年高二下学期4月份期中学业水平考核数学试题
江西省南昌市新建区第二中学2022-2023学年高二下学期4月份期中学业水平考核数学试题(已下线)2011—2012学年度宁夏银川一中高二上学期期末考试理科数学试卷福建省泉州市永春二中2019-2020学年高二下学期返校复学考试数学试题
9 . 已知函数f(x)=aln(x+1)﹣ax﹣x2.
(Ⅰ)若x=1为函数f(x)的极值点,求a的值;
(Ⅱ)讨论f(x)在定义域上的单调性;
(Ⅲ)证明:对任意正整数n,ln(n+1)<2+
.
(Ⅰ)若x=1为函数f(x)的极值点,求a的值;
(Ⅱ)讨论f(x)在定义域上的单调性;
(Ⅲ)证明:对任意正整数n,ln(n+1)<2+
![](https://img.xkw.com/dksih/QBM/2016/3/11/1572533292023808/1572533297831936/STEM/8ae979df63bc4307b08c2e154741f600.png)
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