在△ABC中,
,P是BN上一点,若
,则实数m的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73497849a8350d927c59a45604962408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925be3f84ea05b6300389ba3ce83c657.png)
更新时间:2023-07-06 11:26:00
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