已知
中,
,BC=2,点P是BC边上一点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf3215d69423d6b090cb7f04e126d17.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bc235df1d3cf1b65050cd1907590cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a84a2aa0743a269c321435431079a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf3215d69423d6b090cb7f04e126d17.png)
更新时间:2023-05-20 07:13:05
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【推荐2】已知向量
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