在
中,角A,B,C所对的边分别为a,b,c,已知
,
,则
=
![](https://img.xkw.com/dksih/QBM/2018/10/29/2064095459819520/2065395514761216/STEM/1c965f5d17e14a48be30961b7cc47659.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2018/10/29/2064095459819520/2065395514761216/STEM/445726aaed714f008da81f73afa08979.png?resizew=86)
![](https://img.xkw.com/dksih/QBM/2018/10/29/2064095459819520/2065395514761216/STEM/09c8901c16b14d71b8fb600d9ccd5f26.png?resizew=74)
![](https://img.xkw.com/dksih/QBM/2018/10/29/2064095459819520/2065395514761216/STEM/dfd3def065444a24b55f1efb2fb6a9c7.png?resizew=17)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
2019高二·全国·专题练习 查看更多[1]
(已下线)《2018-2019学年同步单元双基双测AB卷》 必修五专题一正弦定理B卷
更新时间:2018-10-31 12:00:50
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