x*4-x*2>12
    -3x^2-4x+4>sqrt(5)
    25×0.13<(3-1/3x)×0.75
    4x-x^2+3>=0
    x*x<3
    x^2+2x+1>0
    （2x-1）(x+1)>0
    10*sinx*cosx<0.2
    4a^3-4a^2+4a+13≤0
    a-16*a^0.5+16<0
    (x^2-x-2)*(x^2-2x-8)<0
    (x^2-3x)*(x^2-2x-8)<0
    (x-x-2)*(x-2*x-8)<0
    5+15x<2x-2
    12.5x^2+100x+25>0
    m－3<0
    4×4^x-5×3^x≥2
    -6x^2-5x-1＞0
    x^2/（6-2x）^2≥10^-8.98
    cos(x)*(0.1*1.28*sin(x)-0.1*cos(x)*0.1*1.28)>0.1*1.28*0.5

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