在△ABC中,角A,B,C的对边分别是a,b,c.若AD为△ABC的角平分线,且
,
,
,则△ABC面积为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3404a52e3e3dc69659b994c0fdd90f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49eab343ba91eada35bc7b4f963e800c.png)
更新时间:2022-05-06 11:45:56
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