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【230828-7】▲ABC中,B=30°,S△=3/2,SinA+SinC=2SinB. 求:b=?

时间:2023-08-28 10:05:36浏览次数:45  
标签:ABC 230828 30 2SinB SinC SinA

【230828-7】▲ABC中,B=30°,S△=3/2,SinA+SinC=2SinB. 求:b=?_三角函数 正弦定理 余弦定理 面积

标签:ABC,230828,30,2SinB,SinC,SinA
From: https://blog.51cto.com/u_7726611/7260063

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