在
中,若
,则
等于
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4788726cb5f402196f53133240c54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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11-12高二上·河南商丘·阶段练习 查看更多[2]
更新时间:2016-12-01 11:28:22
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【推荐1】在△ABC中,内角A,B,C所对边分别为a,b,c.若
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【推荐2】在
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