5=0.094*x*0.32
    4sqrt((76x)^2+1)=x*sqrt(4x^2+1)*sqrt((81x)^2+1)
    5=0.65*0.094*x
    4x=0.32*sqrt(4*0.32^2+1)
    90-arctan(2x)=56.9
    4*sqrt((7.7x)^2+1)=x*sqrt(4*x^2+1)*sqrt((29x)^2+1)
    4*x=0.65*sqrt(4*0.65^2+1)
    90-arctanx=56.9
    10.9x^2-50.57x-337.47=40.34
    10.9x^2-50.57x-337.47=818.72
    4sqrt((15.16x)^2+1)=x*sqrt(4x^2+1)*sqrt((57x)^2+1)
    4x=0.65sqrt(4*0.65^2+1)
    4x=xsqrt(4x^2+1)
    4sqrt((7.714x)^2+1)=x*sqrt(4x^2+1)*sqrt((29x)^2+1)
    0.266x*0.65=10
    sqrt((7.714x)^2+1)=x*sqrt(4x^2+1)*sqrt((29x)^2+1)
    0.266*x*0.65=5
    4x=0.65*sqrt(4*0.65^2+1)
    90-arctan(x)=56.9
    4*sqrt((13.86x)^2+1)=x*sqrt(4x^2+1)*sqrt(1600x^2+1)

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