1194.09*0.94+3084.74*0.34+1389.91*sqrt(1-x^2)+3196.793*x = 4538
    1194.09*0.9+3084.74*0.42+1389.91*sqrt(1-x^2)+3196.793*x = 4538
    1194.09*0.89+3084.74*0.44+1389.91*sqrt(1-x^2)+3196.793*x = 4538
    1194.09*0.94+3084.74*0.33+1389.91*sqrt(1-x^2)+3196.793*x = 4538
    x²＋x＋0.25＝0
    1194.09*0.92+3084.74*0.39+1389.91*sqrt(1-x^2)+3196.793*x=4538
    x²＋x＋2.25＝0
    x（60-x）=864
    x+1.4x-2x*x=0.08
    X*(X+1)=6006
    cosx=1.239sinx
    N*(N+1)*25=21000
    N*N+N=840
    a∧3＋2a^2－a+1=0
    a∧3＋2a^2－a+1=0
    a∧3＋2a^2－a+1=0
    a∧3＋2a^2－a+1=0
    a∧3＋2a^2－a+1=0
    （100+200x）（2-x）=300
    （30-2x）（24-2x）=80

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