若向量
满足
,
,且
,则向量
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962421d06de6573a56388afb4a8c4add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cbd3ad4cfa6d2a99a3cf2217f96134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1d715863fff24155c89919acc94dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
23-24高一下·北京房山·期中 查看更多[3]
北京市房山区2023-2024学年高一下学期学业水平调研(一)数学试题(已下线)专题01 平面向量(2)-期末考点大串讲(苏教版(2019))(已下线)核心考点2 平面向量的数量积 专题讲解 (期末考试必考的10大核心考点)
更新时间:2024-06-09 19:43:39
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解题方法
【推荐1】在
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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A.3 | B.5 | C.6 | D.10 |
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【推荐2】平面向量
与
的夹角为
,
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
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【推荐1】已知菱形
的对角线
,点
在另一对角线
上,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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【推荐2】非零向量
,
,
满足
,
与
的夹角为
,
,则
在
上的投影为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
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【推荐1】已知单位向量
,
满足
,若向量
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
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【推荐2】已知
,且
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