题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161307-68155.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161307-97808.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161307-24728.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161307-97808.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161258-77191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161258-67000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161258-86472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161237-81429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161237-16261.jpg)
(Ⅰ)求V(x)的表达式;
(Ⅱ)当x为何值时,V(x)取得最大值?
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161208-58886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161209-87649.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161209-25865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161209-42255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161210-65667.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161210-15229.png)
A.![]() | B.![]() | C.![]() | D.![]() |
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161155-87187.png)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161155-22246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161155-54805.png)
(Ⅱ)是否存在实数
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161155-24199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161156-67377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161155-24199.png)
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161124-20125.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161125-27823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161125-88598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161125-19701.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161125-13228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161125-81669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017161126-15782.png)
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