已知在非等腰三角形ABC中 角A B C与其所对的边a b c满足条件(2acosC-ccosA)=a^2-c^2求b的边长若A,B,C成等差数列,且△ABC的面积S=根号3/3 求△ABC的周长条件打错了 应该是:2(acosC-ccosA)=a^2-c^2
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![已知在非等腰三角形ABC中 角A B C与其所对的边a b c满足条件(2acosC-ccosA)=a^2-c^2求b的边长若A,B,C成等差数列,且△ABC的面积S=根号3/3 求△ABC的周长条件打错了 应该是:2(acosC-ccosA)=a^2-c^2](/uploads/image/z/1006419-3-9.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%A8%E9%9D%9E%E7%AD%89%E8%85%B0%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD+%E8%A7%92A+B+C%E4%B8%8E%E5%85%B6%E6%89%80%E5%AF%B9%E7%9A%84%E8%BE%B9a+b+c%E6%BB%A1%E8%B6%B3%E6%9D%A1%E4%BB%B6%282acosC-ccosA%29%3Da%5E2-c%5E2%E6%B1%82b%E7%9A%84%E8%BE%B9%E9%95%BF%E8%8B%A5A%2CB%2CC%E6%88%90%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%2C%E4%B8%94%E2%96%B3ABC%E7%9A%84%E9%9D%A2%E7%A7%AFS%3D%E6%A0%B9%E5%8F%B73%2F3+%E6%B1%82%E2%96%B3ABC%E7%9A%84%E5%91%A8%E9%95%BF%E6%9D%A1%E4%BB%B6%E6%89%93%E9%94%99%E4%BA%86+%E5%BA%94%E8%AF%A5%E6%98%AF%EF%BC%9A2%28acosC-ccosA%29%3Da%5E2-c%5E2)
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