1-(1/2)x^(0.25)+(1/2)x^(0.2)>0
    1-(1/2)x^(0.25)+x^(0.2)>0
    1-x^(0.25)+x^(0.2)>0
    1-0.5x^(0.25)+x^(0.2)>0
    -1<=x^2+x-6<0
    e^(1-0.5x^(0.25)）<((lnx/x^(0.5))
    e^(1-0.5x^(0.25)）
    e^(1-0.5x^(0.25)）/(x^(0.125))
    e^(1-0.5x^(0.25)）/(1+x^(0.125))
    e(1-0.5x^(0.25)）/(1+x^(0.125))
    (1-0.5x^(0.25)）
    e^(1-0.5x^(0.25)）<（lnx/x^(0.5)）
    （1-0.5x^(0.25)）<（lnx/x^(0.5)）
    a-2/a+1>0
    ((2+2x+2lnx)/(x^2+2x))<2
    2>((2+2x+2lnx)/(x^2+2x))
    5>((2+2x+2lnx)/(x^2+2x))
    1>((2+2x+2lnx)/(x^2+2x))
    0>((2+2x+2lnx)/(x^2+2x))
    cosx+x>1/2

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