题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-26379.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032210-11910.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032210-84065.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032210-12352.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032210-21362.gif)
(1) 当点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-26379.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
(2) 当点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-26379.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032211-27039.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032211-75929.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032211-78481.gif)
所以,点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032211-27039.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032211-48565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032212-81541.gif)
(2)如图(二),当点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-26379.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032212-27902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032212-66966.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032212-63410.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032213-18700.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032213-61542.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032213-84081.gif)
即点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032209-49670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032211-75929.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032204-81737.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032204-20739.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032204-23836.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032204-90342.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032204-15573.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032205-32367.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032157-91905.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032158-27849.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032158-28420.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032158-17049.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032146-58717.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032147-58078.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032147-90236.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032147-43190.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032147-68289.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032148-52075.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032140-26391.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032140-73995.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032140-88850.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032140-93636.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032140-83150.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032130-25357.gif)
又点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032130-33626.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-76014.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-86908.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-19703.gif)
(2)若向量
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-27063.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-44736.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-89104.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-48761.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105032131-42709.gif)
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