Mathematics
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    e^x-sinx-cosx>0
    m^2-3m>6
    0 <(a^2+2*a+1)/2*(a^2+1)
    (3*3^(-1/2)+2)/4 > (a^2 + 2*a + 1)/2*(a^2+1)
    0<180n-2381<360
    (e^x-1-x)/x^2>1/2
    1/x>10
    1/x>100
    1/x>1
    1/x>10000000
    x^2>0
    2a+12(2000-a)<=10000
    70x+50(30-x)≤1600
    2(2x-1)≥(3x-4)
    3+2X<4+3X 3-5X>3X-5 7+X<4X-2
    3X-5>-2X-1
    3X-5>2X+1
    1<-3X-4<=6
    1<3x+4<=6
    0.8(y-20)+20>=80

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