题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062410-99962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062410-11735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062410-62147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062410-35956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062411-96700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062410-11735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062411-46077.png)
A.内心 | B.垂心 |
C.外心 | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062411-51326.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062412-70526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062412-72643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062412-63311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062412-72499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062413-75796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062413-66901.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062410-11735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062411-46077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062411-58481.png)
核心考点
试题【若是上不共线的三点,动点满足且),则点的轨迹一定通过的A.内心B.垂心C.外心D.边的中点】;主要考察你对平面向量数量积的意义等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062403-74778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062403-55718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062403-82079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062404-65020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062404-21922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062404-57425.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062353-39848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062354-24552.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062354-12829.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062354-62432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062354-68546.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062355-10826.png)
B.
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062355-18447.png)
C.
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062355-72864.png)
D.
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062355-20524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062348-35869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062349-79624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062348-35869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062349-79624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062348-35869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062349-79624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062348-35869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062348-35869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062349-79624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062342-12240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062342-63847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062343-80281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062343-35948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062343-39531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062344-44449.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104062339-73505.png)
A.30° | B.45° | C.90° | D.135° |
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