题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013112-89434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013112-16855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013112-74770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013113-61629.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013113-65458.png)
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013113-41367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013114-37577.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013114-16965.png)
化简得
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013114-83896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013114-90733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013115-34216.png)
核心考点
试题【已知向量,,若,则实数等于 .】;主要考察你对平面向量的基本定理及坐标表示等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013106-24873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013106-91037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013106-78822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013107-83150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013107-49365.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013100-26605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013101-13130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013101-75096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013101-68328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013054-30553.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013054-60803.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013054-39869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013054-85264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013054-39869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013054-85264.png)
A.(-2,-1) | B.(2,1) | C.(3,-1) | D.(-3,1) |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013048-52789.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013038-38931.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013039-73652.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013039-74994.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013039-96355.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013039-14422.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013040-66875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104013039-74994.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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