已知函数
.
(1)讨论
的单调性;
(2)若函数
有两个不同的极值点
、
,求证:
;
(3)设
,函数
的反函数为
,令
,
、
、
,
,
且
,若
时,对任意的
且
,
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ccdfcda1964132d04df71aef2273ac.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a443ba4290fca6d851ef9592535f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd271c3e9d18747c22077fe2ffe6f01.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe141ba5de62b7cc88f37a65f195892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327e81d90543aa594968112a73bfa2ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfbea0fdb79dfaa79f2e08ef39e6302e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aadf9ab510510120699c5eee39ab18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3192864e3d5390a5be09e22eca98a824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-06-01 11:09:31
|
相似题推荐
解答题-证明题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
,
为参数且
.
(1)函数
的值域为
时,求参数m的取值范围;
(2)当
时,若方程
有两个不等实数解
,
,完成以下两个问题:
①求
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1bbb13de97bdd4126bbd91baee9db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b156f0540d4628d2e61aefdfeba74bb.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e409bdb06c6e71f137eca131ecd596.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】已知
,其中
.
(1)求
的单调区间;
(2)若
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f2a3dc9f70bc66c91c91543dcbabde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6455e38ff53ede2508e4d9cb23f0b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a733a986a9b649ff413280afb194794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)当
时,求
的最大值;
(2)若对
,都有
恒成立,求
的取值范围;
(3)证明:
对任意正整数
均成立,其中
为自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e507a99e1e7a912eb63818d3f072c3b4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bc1807f5f5784e75c4e5e6df17f3ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51fe4b45eabef67b593d22c8f697e70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34bdf025f6472f99b0aa8849bbdcafa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e208debb3d00eea4d8ff687aad28281a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
,
.
(1)当
时,求曲线
在
处的切线方程;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b2980b797cb1599915d86dfbb9471e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a32dee858aac8ee0591ac132de72868.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b371806a65be18227a0453dda3e2a16d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f6953e56b5543d91512dfc1cfc6c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】设函数
.
(1)讨论
的单调性;
(2)若
有两个零点
和
,设
,证明:
(
为
的导函数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d3836da14d1e3d1fb6e4fd43aa42eb.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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c45b5bbd5fb7706c6f7c24df34fc145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec2e06edc27a6930c32f3450b0fb928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
【推荐2】已知函数
.
(1)若函数
,讨论
的单调性;
(2)从下面①②两个问题中任意选择一个证明,若两个都证明,则按第一个证明计分.
①若函数
,
,且
,证明:
.②若函数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedf5f27b2bae1dbb21ea2e4e96ab706.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d121c0c70fa3247e0c2a794dc02c3a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)从下面①②两个问题中任意选择一个证明,若两个都证明,则按第一个证明计分.
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ad79ee4384a4bccf8f48202050379d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9ba50ede8ef97b843accf839fef5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d9712c3b25f3030e166e136d3a4686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32e049c32ec0f90d2211997b2e3bf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82abf04fba262a4924b0c62a50f3d808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096578bb2fecef3b8d822360e999317d.png)
您最近一年使用:0次