题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050834-74737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050835-15770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050835-72796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050835-52097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050836-54723.png)
(Ⅰ) 求
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050836-43227.png)
(Ⅱ)求曲线
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050835-72796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050836-54723.png)
(Ⅲ)设函数
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050836-78688.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050836-36201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050836-57533.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050837-17219.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050837-49522.png)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050837-71505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050837-96089.png)
得 令
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050837-48467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050838-85132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050838-37293.png)
(Ⅲ)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050838-54114.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050837-48467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050838-85132.png)
根据
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050838-32859.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | + | 0 | - | 0 | + |
![]() | 增 | 极大值 | 减 | 极小值 | 增 |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050839-63209.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050840-24432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050839-70215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050840-29639.png)
解析
核心考点
试题【设函数在处取得极值,且曲线在点处的切线垂直于直线.(Ⅰ) 求的值;(Ⅱ)求曲线和直线所围成的封闭图形的面积;(Ⅲ)设函数,若方程有三个不相等的实根,求的取值范围】;主要考察你对函数的相关概念等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050811-12538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050811-78561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050811-14280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050812-49769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050812-22540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050812-75043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050811-14280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050812-64835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050813-71402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050813-85402.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050800-70446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050801-46695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050801-75596.png)
则
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050801-32304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050801-40895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050802-69689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050802-81952.png)
A.36 | B.24 | C.18 | D.12 |
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050738-34602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205050738-82115.png)
A.3x+2 | B.3x+1 |
C.3x-1 | D.3x+4 |
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