0.6 x＾2+(8-0.6x)×x/2+0.3x×(6-x)=24
    (4896/x)^2+(x/(x+1196))^2 = 1
    (4896/x)^2+(x/(x+1196))^2=1
    x*(59-3*x)=288
    (1196/x)^2+(x/(x+4896))^2=1
    6*1.5+14*2-14x=7*1.5+13*2-13x
    x*(54-3*x)=288
    (1+sinx)/(1-sinx)=12.3
    ln(0*x)/x=4751/59270000
    8x^(2)+124x－105
    x*x*x+3*x*x+2*x+3=0
    (42-37.61)/(0.95-x)=(42-35)/(0.95-0.98)
    2a/π-sin(2a)/π=1
    0.627143=(0.95-x)/(0.95-0.98)
    (42-37.61)/(42-35)
    4x+24=526.5-9x
    a/π-sin(2a)/π=0
    (2240/x)^2+(x/(x+480))^2=1
    (42-37.61)/(42-35)=(0.98-x)/(0.98-0.95)
    a/π-sin(2a)/（2π）=1/5

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