题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051316-99156.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:根据题意,由于根据向量的加法和减法法则可知,
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051316-99156.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051316-91595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051316-96960.png)
点评:解决的关键是根据向量的加减法几何意义来求解,属于基础题。
核心考点
试题【化简的结果是( )A.B.C.D.】;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/20191104/20191104051310-75398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051310-86074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051310-14325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051310-75398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051310-23823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051311-63020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051310-86074.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051304-95342.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051304-58935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051304-67913.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051259-26720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051259-30887.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051259-22521.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051259-57423.png)
A.A、C、D | B.A、B、D | C.A、B、C | D.B、C、D |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051253-82202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051253-12934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051253-42013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051254-97125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051254-22548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051254-80202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051254-72319.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051254-22548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051254-80202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051248-35973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051249-37981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051249-23569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051249-79488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051249-39307.png)
A.2 | B.![]() | C.![]() | D.![]() |
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