在等腰三角形ABC中,角A角B角C的对边为a,b,c,已知a=3,b和c是关于x的方程x^2+mx+2-1/2m=0的两个实数根求三角形ABC的周长.喂....没对哦
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![在等腰三角形ABC中,角A角B角C的对边为a,b,c,已知a=3,b和c是关于x的方程x^2+mx+2-1/2m=0的两个实数根求三角形ABC的周长.喂....没对哦](/uploads/image/z/1123281-9-1.jpg?t=%E5%9C%A8%E7%AD%89%E8%85%B0%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E8%A7%92A%E8%A7%92B%E8%A7%92C%E7%9A%84%E5%AF%B9%E8%BE%B9%E4%B8%BAa%2Cb%2Cc%2C%E5%B7%B2%E7%9F%A5a%3D3%2Cb%E5%92%8Cc%E6%98%AF%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bx%5E2%2Bmx%2B2-1%2F2m%3D0%E7%9A%84%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E5%91%A8%E9%95%BF.%E5%96%82....%E6%B2%A1%E5%AF%B9%E5%93%A6)
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