解题方法
1 . 已知函数
,函数
的图象在点
处的切线方程为
.
(1)求函数
的表达式;
(2)若
,且
在
上的最小值为
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3dba99d797fb510cf97a69de003911b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604f25e23489409386a06039adcaa151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cf0f8829ad6ed064ba129545b2d3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d2f7cf8b2952f5de03a32af45831cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46952263349c0bff2725caeeb0b5f6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
您最近一年使用:0次
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解题方法
2 . 已知函数
.
(1)试讨论函数
)在区间
上最大值;
(2)
时对于任意
,都有:在
,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87477761ec5fad26e724fdbd1d1af427.png)
(1)试讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186c8923781cf3a5879a939c4c110d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cccc2a65b8836c713ad398fd56b27cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed9ec8ea087514fd62ade5cf1085717.png)
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3 . 已知函数
.
(1)当
时,求
的单调区间与最值;
(2)当
时,证明函数
在R上没有零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a131de256125c2d68a45a57d291bf2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544530e1133b2924ccfbe691141a5641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fed5a607b5a83612997a0c608ad80.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
,若
,则x的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35aec031ad1565032470df0151a98d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d09dabb8da4894621cfe31d88453c3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a791179c8e1d161421f39f89e4433b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eee46116daea8878291d0de66f91d5c.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2802c276e9b93d68ae8cca6b201e05f8.png)
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6 . 已知函数
在
内有两个极值点x1,x2(x1<x2),其中a为常数.
(1)求实数a的取值范围;
(2)求证:x1+x2>2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4a4a93a06f16d1fe8229928577d8b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(1)求实数a的取值范围;
(2)求证:x1+x2>2.
您最近一年使用:0次
2020-05-26更新
|
5805次组卷
|
4卷引用:湖北省武汉市江岸区2018-2019学年高二下学期期末理科数学试题
湖北省武汉市江岸区2018-2019学年高二下学期期末理科数学试题(已下线)极值点偏移专题01极值点偏移概念专题11导数研究双变量问题(解答题)(已下线)专题35 导数中双变量与极值点偏移必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)
7 . 设
,当
,
变化时,则
的最小值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d0fec0ad01822137b79f6741d0dcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d3d6b4385a36b2468d3e61f07b4f76.png)
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解题方法
8 . 若函数
恰有两个不同极值点
.
(1)求
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7fb60d4c972b57e4d455f5be30c830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3661dbd3b2c578c685e6a11a4102ddd.png)
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9 . 下列四个命题(
为自然对数的底数)
①
;②
;③
;④
.
其中真命题序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa011355ad848a4003473335a4919fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0452747255a29658ac38f97be8048e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1ebf06bfb3a4afee47c7de5dacb3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902d2187b7b2449a1960fada9a89a0e4.png)
其中真命题序号为
您最近一年使用:0次
名校
10 . 已知函数
(其中e是自然对数的底数,a,
)在点
处的切线方程是
.
(1)求函数
的单调区间.
(2)设函数
,若
在
上恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e79c997d46aec7871ddf2f99f35665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739c9635c5ec4360a1da1e1f9a40620d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3f7fc2114bef0fdd05f5dda98868c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f15318d2d6664ecdf81180baf70a0c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
您最近一年使用:0次
2020-05-12更新
|
1306次组卷
|
6卷引用:湖北省襄阳市老河口市高级中学2022-2023学年高二下学期期中数学试题
湖北省襄阳市老河口市高级中学2022-2023学年高二下学期期中数学试题2020届江西省吉安、抚州、赣州市高三一模数学(理)试题江西省2019-2020学年高三质量监测理数试题江西省2020届高三毕业班新课程教学质量检测卷理科数学试题(已下线)【新东方】【2021.5.19】【SX】【高二下】【高中数学】【SX00082】辽宁省沈阳市东北育才学校2020-2021学年高二下学期期末数学试题