(1+(1+4x)^(1/2))/2x<1
    -12500+X-(50000+X)*1% ≥5000
    2x^2+5x+3>0
    1-(1-(10+k)/(50+k))^5>=0.85
    (x-6)(x+2)<0
    (6821.28+x)/(97925.62+X)>0.07
    -3*x^2+252*x-4860>0
    2x-4＞4（x+5）
    xxx<2
    -x∧2+x+6≥0
    (360-3m)/3<92
    ((360-3*n)/2)<46 n<92
    144+42x>0 156+52X<0
    （4m－2）∧2－4（m＋6）（m＋1）≥0
    2x-x＾2＋3＞0
    2x-x＾2-3＞0
    4<(1+2*T)/(2*T-2) (1-t)16+(1+2*t)4-(1+t) <= 0 (1-t)4+(1+2*t)2-(1+t) >0
    4>(1+2*T)/(2*T-2)>2 (1-t)16+(1+2*t)4-(1+t) >= 0 (1-t)4+(1+2*t)2-(1+t) >0
    t<1 t>5/2 (1-t)4+(1+2*t)2-(1+t)<0 (1-t)16+(1+2*t)4-(1+t)>=0
    t<1 t>5/2

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