题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052638-55930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052639-56434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052639-99480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052639-71564.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:根据已知的图像可知,对于梯形中,利用和向量的首尾相接和差向量的平行四边形运算法则,可知
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052638-55930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052639-56434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052639-99480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052640-72528.png)
点评:考查了向量的加减法的几何意义的运用,属于基础题。
核心考点
试题【如图,在梯形ABCD中,AD∥BC,则 + - 等于( )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/20191104/20191104052632-28867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052633-90134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052633-85956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052633-54655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052633-29541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052633-54655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052633-52165.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052634-74139.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052625-84624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052626-93645.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052626-59756.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052620-32299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052620-77419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052620-85034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052620-48257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052620-32299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052620-77419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052614-34257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052614-98968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052614-72011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052615-83489.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052615-39130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052614-34257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052614-98968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052606-51967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052607-33882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052607-50518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052607-48072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104052607-68410.png)
A.1 | B.![]() | C.2 | D.![]() |
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