已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7200cde01b6862a4a4013260a70bed1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8247802e1aa91ce6c9cf63ed3784497.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-20 10:42:57
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(0.65)
【推荐1】设向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a221e20e74e70f63c8359e7a55206e.png)
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您最近一年使用:0次
单选题
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适中
(0.65)
名校
解题方法
【推荐2】已知锐角
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffca53d085f71dc41b77e0cebc47623d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258f7dd295360a0fa22a811dcffa3ac1.png)
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您最近一年使用:0次