名校
1 . 已知平面向量
,
的夹角为
,且
,
.若平面向量
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b47c517d7b6d8d9d3c72a9341c1870.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad8773f031a1e35117e1b7b8132d097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f744c4442e4294dc9e8a7a35cf0243ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c398ef888cab14a0805a46f59150e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3118441c4fa986f831874fac18a0a3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b47c517d7b6d8d9d3c72a9341c1870.png)
您最近一年使用:0次
2017-02-19更新
|
510次组卷
|
2卷引用:2017届湖北省武汉市武昌区高三1月调研考试理数试卷
名校
解题方法
2 . 向量
在正方形网格中的位置如图所示,若
,则
=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/89c20c7d-178b-4a5c-a252-6590f4092513.png?resizew=237)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2c90aa994b56747e10c947968d1874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d287e7f86a20acfbd1254b412352cdf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/89c20c7d-178b-4a5c-a252-6590f4092513.png?resizew=237)
A.-8 | B.-4 | C.4 | D.2 |
您最近一年使用:0次
2016-12-04更新
|
743次组卷
|
4卷引用:2016届湖北襄阳五中高三5月二模文科数学试卷