题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-69467.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-18384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-26063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
(Ⅱ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-55302.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-65647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-95905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-33908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-11398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-34097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-95429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-93656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-62716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-80064.png)
解析
试题分析:(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-18384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-26063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-65647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-69467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-17540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-71205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-85195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042208-40089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042208-25717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042208-66108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-65647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-55302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042208-25717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-55302.png)
试题解析:(Ⅰ)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042208-71372.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-17540.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-18384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-26063.png)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042209-76782.png)
此时
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042209-36638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042209-71576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042209-81869.png)
![]() | (![]() | 1 | ![]() |
![]() | — | 0 | + |
![]() | ↘ | ![]() | ↗ |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-95905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-33908.png)
(Ⅱ)由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-17540.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042210-22765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042210-21866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042210-35627.png)
①若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-49548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-81333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-53028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-55302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-57932.png)
②若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-97396.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042212-98330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042212-23580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042212-93302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-53028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-55302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042212-32238.png)
③若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042213-24979.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042211-81333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042212-23580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042204-27401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042205-55302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042213-27399.png)
综上,当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-11398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-34097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-95429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042206-93656.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-62716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042207-80064.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042157-40734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042157-35602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042157-61448.png)
A.64 | B.32 | C.16 | D.8 |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042144-11220.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042144-29239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042144-98476.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042144-86371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042145-57592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042145-89842.png)
(Ⅱ)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042145-89842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042145-86111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042137-34845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042138-39984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042138-63890.png)
A.3 | B.6 | C.9 | D.18 |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042123-66935.png)
(l)若x=0是函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-78832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-48674.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-48674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-24375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-78832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-24375.png)
围;并由此判断曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-78832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-72632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042124-24375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042113-51473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018042113-50263.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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