设三角形ABC的三内角A,B,C满足2B=A+C,a,b,c.分别是内角A,B,C的对边,三条边a,b,c满足2/b=1/a+1/C,求角A,B,C我在网上搜到的解答都有错误,有谁能提供正确详解?这几个回答也不详细;比如怎么由∴2a-a^2=2
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![设三角形ABC的三内角A,B,C满足2B=A+C,a,b,c.分别是内角A,B,C的对边,三条边a,b,c满足2/b=1/a+1/C,求角A,B,C我在网上搜到的解答都有错误,有谁能提供正确详解?这几个回答也不详细;比如怎么由∴2a-a^2=2](/uploads/image/z/1620870-6-0.jpg?t=%E8%AE%BE%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E4%B8%89%E5%86%85%E8%A7%92A%2CB%2CC%E6%BB%A1%E8%B6%B32B%3DA%2BC%2Ca%2Cb%2Cc.%E5%88%86%E5%88%AB%E6%98%AF%E5%86%85%E8%A7%92A%2CB%2CC%E7%9A%84%E5%AF%B9%E8%BE%B9%2C%E4%B8%89%E6%9D%A1%E8%BE%B9a%2Cb%2Cc%E6%BB%A1%E8%B6%B32%2Fb%3D1%2Fa%2B1%2FC%2C%E6%B1%82%E8%A7%92A%2CB%2CC%E6%88%91%E5%9C%A8%E7%BD%91%E4%B8%8A%E6%90%9C%E5%88%B0%E7%9A%84%E8%A7%A3%E7%AD%94%E9%83%BD%E6%9C%89%E9%94%99%E8%AF%AF%EF%BC%8C%E6%9C%89%E8%B0%81%E8%83%BD%E6%8F%90%E4%BE%9B%E6%AD%A3%E7%A1%AE%E8%AF%A6%E8%A7%A3%EF%BC%9F%E8%BF%99%E5%87%A0%E4%B8%AA%E5%9B%9E%E7%AD%94%E4%B9%9F%E4%B8%8D%E8%AF%A6%E7%BB%86%3B%E6%AF%94%E5%A6%82%E6%80%8E%E4%B9%88%E7%94%B1%E2%88%B42a-a%5E2%3D2)
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