名校
解题方法
1 . 已知函数
.
(1)若
,求
的最小值;
(2)若
在区间
上没有极值,且在
上的最大值与最小值之差大于5,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e35833d2fdfcb4c266e16901a3dddc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36a91b78ea833d5b09c11366324a845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f24d1864ebb9b940567e8623a28d982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f24d1864ebb9b940567e8623a28d982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知函数
(
是自然对数的底数).
(1)当
时,求
的极值点;
(2)讨论函数
的单调性;
(3)若
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c207efd83d75c1f69237d97616c726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb37cae66e9ec725a1e35be4ab1c711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086f714608dfffd3ac8da92d12c26239.png)
您最近一年使用:0次
名校
3 . 已知函数
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07eaadbba0772d7c931210f9944cc05.png)
A.![]() ![]() |
B.![]() |
C.当![]() ![]() |
D.当![]() ![]() |
您最近一年使用:0次
名校
4 . 已知
,
,a是参数,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e575634ae6d48b7923b786ccab7e64c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
A.若![]() ![]() | B.![]() |
C.若![]() ![]() | D.![]() |
您最近一年使用:0次
2023-05-20更新
|
664次组卷
|
3卷引用:安徽省六安市三校联考2022-2023学年高二下学期5月期中考试数学试题
名校
解题方法
5 . 关于
的不等式
恒成立的一个必要不充分条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86324f45de48826bfd36dc028e1bc0d7.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-04-08更新
|
858次组卷
|
3卷引用:安徽省六安市舒城中学2021-2022学年高二下学期期中数学试题
安徽省六安市舒城中学2021-2022学年高二下学期期中数学试题重庆市育才中学校2021-2022学年高二(清北班)下学期第一次月考数学试题(已下线)三省三校2022届高三下学期第一次模拟数学(理)试题变式题6-10
名校
解题方法
6 . 已知函数
,
.
(1)若
在点
处的切线与直线
垂直,求
的值;
(2)设函数
,且函数
的两个极值点为
,
,求证:
;
(3)若对于
,
恒成立,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31072d632d6bf9434d13ddfdedf84dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e458c0eedb3cbcfa8a713571238384ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfc6b5b7ae63a330f0cd8593ee47338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795b9ce3f4145bb2289a5f83fa8530c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5790d5181783c15fd46d95bf18b796f0.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/8395a0cf843ef2620e4ff7d12b6170dc.png)
(3)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52805938232a4b74d8b483bb68288c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d744f2a5f3f8444ee6f92aaaa206fed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-08-06更新
|
165次组卷
|
2卷引用:安徽省六安市第一中学2019-2020学年高二下学期期中数学(理)试题
解题方法
7 . 若函数
对任意
,都有
. 则称函数
是“以
为界的类斜率函数”.
(1)试判断函数
是否为“以
为界的类斜率函数”;
(2)若实数
,且函数
是“以
为界的类斜率函数”,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d85155593cb32ec61deacf9af06be12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61682fd103a3a0e7e14b606395b0d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf119cbc0c3f9775a1646bdda4ef2575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274b7da08df7cb9510bea7758896a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次