题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42417.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-38886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-89714.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-53477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-77181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-74769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-21564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-90271.png)
解析
试题分析:本题主要考察函数的单调性与导数的关系 ,通过求导研究函数的单调性是导数的基本应用.
试题解析:(1)∵
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025256-82344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025256-99952.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-53477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-77181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-74769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-21564.png)
(2)由(1)知,
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025256-82344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025256-99952.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-53477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-38886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-74769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-21564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-42240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025254-38886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025256-35183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025255-90271.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025247-14657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025247-20634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025247-90205.png)
⑴当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025247-90346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025248-18999.png)
⑵若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025248-98953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025248-18999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025248-17647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025248-89150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-85507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-36158.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-67402.png)
(2)求证:当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-51925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-74058.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-99737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025228-75532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025228-78540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-75872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-73897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025228-78540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-10496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-79405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-56691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-46536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-76464.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-95270.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-46613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-37368.png)
(3)讨论关于
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-53005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-95170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-45731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-67079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-30306.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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