在
中,
,角
的对边分别为
,则
=_________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b903021571c1b57943a1a3274217654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0ae8e92dd3119d41f2c830ea526516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ace74bfb716753490ebe0e740ff5baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bff72e6b6bd69a7bab77e2aa4cdb96.png)
20-21高二·全国·课后作业 查看更多[1]
(已下线)1.1.2+余弦定理(2)(重点练)-2020-2021学年高二数学十分钟同步课堂专练(人教A版必修5)
更新时间:2020-08-12 17:09:56
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