已知向量
满足
则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43b43efac0a351c08003739f0d703c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
A.5 | B.-5 | C.6 | D.13 |
更新时间:2024-01-04 14:23:45
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【知识点】 已知模求数量积