想知道:y=(x 2)/(3x-1)4y=28,则y=7BE=BC CE=BC CA/2;CF=CA AF=CA AB/2f(x2)-f(x1)=loga(x2^2-ax2)-loga(x1^2-ax1)

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想知道:y=(x 2)/(3x-1)4y=28,则y=7BE=BC CE=BC CA/2;CF=CA AF=CA AB/2f(x2)-f(x1)=loga(x2^2-ax2)-loga(x1^2-ax1)
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想知道:y=(x 2)/(3x-1)4y=28,则y=7BE=BC CE=BC CA/2;CF=CA AF=CA AB/2f(x2)-f(x1)=loga(x2^2-ax2)-loga(x1^2-ax1)
想知道:y=(x 2)/(3x-1)4y=28,则y=7
BE=BC CE=BC CA/2;CF=CA AF=CA AB/2f(x2)-f(x1)=loga(x2^2-ax2)-loga(x1^2-ax1)

想知道:y=(x 2)/(3x-1)4y=28,则y=7BE=BC CE=BC CA/2;CF=CA AF=CA AB/2f(x2)-f(x1)=loga(x2^2-ax2)-loga(x1^2-ax1)
3(x-1)的平方-6=0x = (3√-5)3 = -5比如m2-2m 1-4m