e^x > x^50
    1.35*（0.9-X）>1.1
    1.35*(0.9-x)<1.1
    -x^2+54x-104>=0
    1+2x＞3x-3
    -3(x－2)≥4-x
    －3/x≤2/3-x
    3x-4＜5x-1
    120-a≤5a÷3
    xxxx-10xxx+35xx-50x+24≤0
    tanx≥-10000
    lg(asinx)-sqrt(1/x)+(tanx)^0＞-5
    lg(acos(x-3))-sqrt(1/x)+(tanx)^0＞-5
    -3≤2x-3＜5
    （x-3）（x+2）＞0
    40＜3c^2-3c
    9n/12n+6>7/44
    1/(x-1)+2/(x-2)>=1
    4（x-1）+3≥2x
    sin(π/6-2x)>2^(1/2)/2

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