解题方法
1 . 已知
是两个单位向量,且
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f83cb43636edf50827e23d00d234b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5ad6ae6b36516b6eda59bedf35f254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a47a9ad40ea73d7ade90a00310482b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-07更新
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658次组卷
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3卷引用:江苏省2024年普通高中学业水平合格性考试数学仿真模拟数学试题02