(42-37.61)/(42-35)=(0.95-x)/(0.95-0.98)
    4X^4+8X^3-0.125X^2+0.25X-0.125=0
    (0.06*0.06*0.06*0.06-x^4)/(12*0.06*0.06-12*x^2)=0.000325
    a/π-sin(2a)=1/5
    0.76*X^2=0.13+x^3
    7x*x-（3*√70）/5+27/10
    （576/x）^2+(x/(x+120))^2=1
    x-1/(3.1415926*3.1415926)=0
    (1+0.587785)/(1-0.587785)
    x-1/(1000000000000*3.1415926*3.1415926)=0
    ln(1-8.6901x)+3.49x=-0.017266
    sin36
    x-490000/(1000000000000*3.1415926*3.1415926)+1/490000=0
    x^(2)-2√3x+2=0
    ln(1+3.49x)-3.49x=-0.0174954
    90-arctan4
    20000*（1+x）^4+20000*（1+x）^3+20000*（1+x）^2=66620
    8－5x＝3x
    3.14*3.14/12/16
    3.14/64

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