x+0.7x=1042
    (C2)0.4×(1-0.4)×0.2
    (C21)0.4×(1-0.4)×0.2
    tanx0.02
    C210.4×(1-0.4)×0.2
    tanx=0.02
    tanx=0.02
    3x+3=1/3x+1
    x*99.98%-96.186*100.02%=3/90
    3x+3=1/3x+1
    x*99.98%-102.641*100.02%=3/90
    (x^2)*(ln((2.097*(10^(-5))*0.651)/((1.626*(10^(-5)))*x))) = ((1-x)^2)*(ln((2.097*(10^(-5))*0.349)/((1.484*(10^(-4))*(1-x)))))
    18X+（1-X）*13=16
    (x^2)*(ln((2.189*(10^(-5))*0.545)/((1.626*(10^(-5)))*x))) = ((1-x)^2)*(ln((2.189*(10^(-5))*0.455)/((1.484*(10^(-4))*(1-x)))))
    (x^2)*(ln((2.189*(10^(-5))*0.545)/((1.626*(10^(-5)))*x))) = ((1-x)^2)*(ln((2.189*(10^(-5))*0.0.455)/((1.484*(10^(-4))*(1-x)))))
     (x^2)*(ln((2.189*(10^(-5))*0.0.545)/((1.626*(10^(-5)))*x) ) ) = ((1-x)^2)*(ln((2.189*(10^(-5))*0.0.455)/((1.484*(10^(-4))*(1-x))) ) )
    x*99.98%-102.805*100.02%=3/90
     (x^2)*(ln((2.197*(10^(-5))*0.651)/((1.626*(10^(-5)))*x) ) ) = ((1-x)^2)*(ln((2.197*(10^(-5))*0.349)/((1.484*(10^(-4))*(1-x))) ) )
    (x^2)*(ln((1.994*(10^(-5))*0.762)/((1.626*(10^(-5)))*x)=((1-x)^2)*(ln((1.994*(10^(-5))*0.238)/((1.484*(10^(-4))*(1-x)))
    -0.06788*(x^2)-(x^2)lnx=((1-x)^2)*(-1.1401-(ln(1-x))

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