x^2-6x>=0
    19a^2+126a+176<0
    x2－x+2>0
    x-2
    x-2<2
    0＜－m＋（m^2－2m－1）＾（1／2）＜1
    log(sinx,cosx)＞0.5
    log(x,ex)＞5
    !(x)＞6
    4x^2+8x+4/x^2+1>0
    a^2+0.25a-3.5＞0
    a2+0.25a-3.5＞0
    （100-10X）×（2+X）＞320
    2x-3>7
    （2m-2）∧2-4（3m∧-11）＞0
    10m∧2+4m+40＜0
    -16x^2-68x+2000>=10260
    x+2≥2sqrt(2x)
    A(x,x+2)＞10
    A(x,x+1)＞10

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