解题方法
1 . 已知函数
.
(1)若曲线
在点
处的切线方程为
,求
的解析式;
(2)当
时,若
在区间
上的最大值为
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b8bedbf213a58550dd3ce28fa15ce5.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983f1213ce474227e80c41d7fba6374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13e38a5ee18ecf4af2d9a8443b4a7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
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2 . 已知函数f(x)=
,其中a为常数.
(1)当a=1时,求f(x)的最大值;
(2)若f(x)在区间(0,e]上的最大值为-2,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0920b8ed2186128dec9dd526c3dfc8a.png)
(1)当a=1时,求f(x)的最大值;
(2)若f(x)在区间(0,e]上的最大值为-2,求a的值.
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名校
解题方法
3 . 已知函数
.
(1)若函数
在定义域上的最大值为
,求实数
的值;
(2)设函数
,当
时,
对任意的
恒成立,求满足条件的实数
的最小整数值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74da4b06c434c46d5a8958ad77f2592.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f8cd7bb4887a6cd1831398fc696845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11068093d3d89afc58b89cd58eb814ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb5b16c6e66d7dde73ca447cd9b7c9e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2020-05-12更新
|
1358次组卷
|
6卷引用:2020届江西省吉安、抚州、赣州市高三一模数学(文)试题
4 .
有最大值,且最大值大于
.
(1)求
的取值范围;
(2)当
时,
有两个零点
,证明:
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74da4b06c434c46d5a8958ad77f2592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd82b5223c2a708c1729db2a3750990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2991593f419597a2e9ce71164ca8da95.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1969f5e49a0d1a0e3786a1ac2e9c345f.png)
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名校
解题方法
5 . 已知函数
,其中
.
(1)若函数
在
处取得极大值,求实数
的值
(2)函数
,当
时,
在
处取得最大值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8bdd91e65bf561645b588ca890e2023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3bb04b5f31d33a6e2b5a218fba67c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-04-20更新
|
440次组卷
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2卷引用:浙江省宁波市余姚中学2018-2019学年高二下学期期中数学试题
名校
6 . 已知函数
.
(1)讨论
的单调性;
(2)若
在
上的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94685362916707b3fd5ba8d6da2c599b.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/579e2c39e6c0a640357e3b0ccd6f954a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-03-05更新
|
627次组卷
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3卷引用:福建省厦门第一中学2018-2019学年高二下学期第一次(3月)月考数学(理)试题
7 . 已知函数
在
处取得极值,
(1)求
的值及
的单调区间;
(2)若函数
在区间
上的最大值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c209996c5da55e4988da354c5239fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb37d173605f006df4c51ba63b1841d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75096deb06fa2aeaace0ec13f59c9ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-02-18更新
|
510次组卷
|
3卷引用:重庆市七校2018-2019学年高二下学期期末联考(文科)数学试题
名校
8 . 已知函数
其中a为常数,设e为自然对数的底数.
(1)当
时,求
过切点为
的切线方程;
(2)若
在区间
上的最大值为
,求a的值;
(3)若不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db75d1fd7851378bd957dd3bd6e2f696.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efea404ec4afc504335f713aa6ee5262.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93c13c9d1a1f85ab7a9b044c669bf53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c7572463225bb3b65cb371f4496440.png)
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2020-02-08更新
|
1188次组卷
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3卷引用:北京海淀区一零一中学2019-2020学年度上学期高三开学考数学试题
北京海淀区一零一中学2019-2020学年度上学期高三开学考数学试题2020届北京市东城区高三一模线上统练数学(二)试题(已下线)专题04 拿高分题目强化卷(第三篇)-备战2021年新高考数学分层强化训练(北京专版)
9 . 已知函数
.
(1)若
,求曲线
在
处的切线方程;
(2)若函数
在
上的最小值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cf26b5effa0592136c26db957b505c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0b6ca237b90b49a91d9d74d007efdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/409eb3f8c7654e0bf87c56eabeca6f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-08-06更新
|
819次组卷
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2卷引用:云南省玉溪市2018-2019学年高二下学期期末数学试题
名校
10 . 已知函数
,
.
(Ⅰ)设
,求函数
的单调区间;
(Ⅱ)若曲线
与
在公共点
处有相同的切线,求点
的横坐标;
(Ⅲ)设
,且曲线
与
总存在公切线,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0daf62a06a144f6cfc707a5034833881.png)
(Ⅰ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71607511fdd4faa9e832345ceb2a817d.png)
(Ⅱ)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(Ⅲ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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