在
中,
为BC上一点,
是AD的中点,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
______ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550329e53494cbcad81a474778ed3c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
更新时间:2024-05-26 14:29:26
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