题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134133-70134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134133-68432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134133-86167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134134-96793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134133-86167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134134-61200.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134134-94559.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134134-78701.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134135-65412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134135-37905.png)
圆C关于x轴的对称圆D的方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134135-60768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134135-75742.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134100-13960.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134100-65329.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134100-77823.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134101-82201.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134100-65329.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134101-61723.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134100-65329.gif)
对每个正整数n,
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134052-78890.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134052-49857.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134052-37632.gif)
(1)试证:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134053-37803.gif)
(2)取
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134053-76745.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134053-95434.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134054-53565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134054-63317.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134054-46444.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134034-72982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134034-32641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134035-55780.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134035-30989.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134035-95492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134035-16386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134036-85489.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134036-99837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134034-72982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134006-57113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134006-82427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134006-57113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134006-86765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025134006-57113.png)
A.![]() | B.![]() | C.![]() | D.![]() |
如图,已知抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133947-97738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133947-76218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133948-42673.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133948-44121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133948-41988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133948-49836.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133948-49880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133949-57609.png)
(Ⅱ)假设直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133949-57609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133949-40480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133949-57609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133949-50402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025133949-82548.png)
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