Mathematics
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    (1+X)e^(-X)>0.01
    x(9-x)>0
    13-4*x^2>0
    e^(-3.14x/(1-x^2)^0.5)≤0.15
    e^(x/(1-x^2)^0.5)≤0.15
    20x^12-21x^11-120x^7+219x^6-101x^5+1≤0
    x^2-3x-10>0
    (X-2)/(3X+5) < 4
    A/250*lnA-(1-A)/250*ln(1-A)+0.01*A*(1-A)<0
     1 / (x2 + 2x + 9) <0
    abs(1/sqrt(1+(200*3.14*x)^2)-1)<0.05
    2x-x^2≥-1
    3x^2-2x-1<0
    9k^2+10k +1<0
    9k^2+10k <1
    (3x+4)/(x-2)≥4
    (2x-1)/(x+1)≤1
    17>x^2>15
    (500+318×n)/(n+1)<338
    10+x≤2^x

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