题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051423-35773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051424-40309.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051424-48065.png)
A.0 | B.2![]() | C.4 | D.8 |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051425-25466.png)
点评:本题结合向量的模
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051425-73610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051425-13467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051425-55877.png)
核心考点
试题【已知向量满足,则 A.0B.2C.4D.8】;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/20191104/20191104051416-59007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051416-98005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051416-79054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051416-24369.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051410-61722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051410-41102.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051410-46054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051411-58249.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-78516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-18361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-61157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-98889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051407-61314.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-78516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-61157.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-78516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051406-61157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051407-72429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051407-61314.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051407-61314.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051400-59241.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051400-96905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051401-61443.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051401-21947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051401-71591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051401-90540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051401-72314.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051351-69968.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051352-70664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051352-67107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051352-71541.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051352-95000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051353-48632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051353-91674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104051352-67107.png)
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