e^x-1/2x^2>1+x^e
    e^x-1/2x^2>ln（x-1）+x^e
    e^x-1/2x^2>ln（x-1）
    -x^2+4x>6-x
    x-1/x-2<=0 x-1/x>=0
    2-x/x-1<=0 x/x-1>=0
    cosx≥½
    (x-3)(x+2)>=0
    log(x,6)<0
    2/3＜2/X
    (2x-1)/(3-4x)>1
    (x+1)/(x-2)<=2
    (x+2)/(1-x)<0
    4x^2-18x+81/4<=0
    -x^2+x-2/3>0
    x+6x>5
    135-7.9m>10.4*21.33
    0.8t^2-3t+1.2>0
    0.8t^2-4sqrt3t/3+1.2>0
    (1.8-4.4(t^2))^2+((-3*t)+0.8*t^2+1.2)^2<1

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