名校
解题方法
1 . 已知函数
有两个不同的零点
.
(1)求
的最值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d7c35fa4153d11c81b501723864539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b64b1a6ad90a44dd02e91a62f2c0364.png)
您最近一年使用:0次
2018-04-03更新
|
1086次组卷
|
9卷引用:河南省豫北豫南名校2018届高三上学期精英联赛数学(理)试题
名校
解题方法
2 . 已知函数
,其中
为自然对数的底数.
(1)若函数
的导函数
在
上是增函数,求实数
的最大值;
(2)求证:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2399c2a712a2890dcd0b195d3b9f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ae93db4630e72b8a9f240f7f129fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c985d6a1e024804ccd86092e4e020cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e219653c77073240a534c7f154bdd9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
您最近一年使用:0次
名校
3 . 函数
在
上的图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52142482df6bbd431d300f011e3ccb12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966cc43fa3220739f2d2e091fe4b30f4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-10-19更新
|
602次组卷
|
2卷引用:云南省昆明一中2018届高三第二次月考文科数学试题
名校
解题方法
4 . 设
是正数数列,
,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9c167dc2de7663c031fec059996f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d4a165709c462216d1eb48ee9cceae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e18c54a4337b5987756f8bbd656638c.png)
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名校
解题方法
5 . 函数
的定义域和值域为
,
的导函数为
,且满足
,则
的范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c94860b1019418b558dd6d5d50a617f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de1d559fa83928eb716d44037444b74.png)
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名校
6 . 已知函数
.
(1)当
,
取一切非负实数时,若
,求
的范围;
(2)若函数
存在极大值
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeef0a1fc29fdce3545535b56de8027c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccb87e515cc46e3086d48d9f5792836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
您最近一年使用:0次
2017-05-02更新
|
434次组卷
|
4卷引用:第十四届高二试题(A卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
名校
7 . 已知函数
,
.
(1)证明:
,直线
都不是曲线
的切线;
(2)若
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728f2cc68f8ca8ef2faa681785798259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770538d7235d12c0117bd2824ef8cf07.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914b349342d0f91c17878d709c16ba2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fdccde9d9d4dcad15e8889b285eda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f827ed65d721a3341985c9f6879d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,
,
,若对任意
,不等式
恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ff29b6bf78924a2168bffb0160c335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e2364b2179201c1c9acbc31b6a9a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9341fa93eb48bc012a4e7f524f3554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 设函数
,其中
是函数
的导数.
(1)求
的单调区间;
(2)对于
,不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8410b8a0560e19efd2b0915534cf0871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7994bbcf39f4dda34e877b21af71f103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23ba69ad98d5b369f19834a23566df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3804d32cb58da2778c498b9f714e350e.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
(
)在定义域内仅有唯一零点.
(1)若对
,不等式
恒成立,求实数
的最大值;
(2)设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
,对于
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb00598a5e27cbe8df206e536c3fb56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9ca15de80717300c0518cd82b561cf.png)
(1)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6a8984aa398bf767ccd9a601d77983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7620c5d02684cad4b4c40124d93afb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f594cc7d59bcf7c05f5e181556cc3cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad2901785a62e1e541b4b765e898960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626e763ce41f8980ec3243173bedf44b.png)
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