已知向量
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c987ded20c4a12204e0bb290de4809.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231ac964f32e4cdfefe318c1ef77dc1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c987ded20c4a12204e0bb290de4809.png)
19-20高一上·辽宁辽阳·期末 查看更多[2]
更新时间:2020-02-06 14:22:31
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