4x-7<15
    4x<15
    x-2>6
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+0.1)*(x+0.1))>0 arcsin((x+0.1)/27.6881)-arcsin(x/27.6881)>0
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+0.1)*(x+0.1))>0.7 arcsin((x+0.1)/27.6881)-arcsin(x/27.6881)>0.8
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+0.1)*(x+0.1))>1 arcsin((x+0.1)/27.6881)-arcsin(x/27.6881)>1
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+0.3)*(x+0.3))>1 arcsin((x+0.3)/27.6881)-arcsin(x/27.6881)>1
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+0.4)*(x+0.4))>1 arcsin((x+0.4)/27.6881)-arcsin(x/27.6881)>1
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+3)*(x+3))>1 arcsin((x+3)/27.6881)-arcsin(x/27.6881)>1
    3/(x+2)≤-1
    ＜2.0029 －(X－28.0401）/2.0029＞=0.038
    sinx-cosx<0
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+0.5)*(x+0.5))>1 arcsin((x+0.5)/27.6881)-arcsin(x/27.6881)>1
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+1.5)*(x+1.5))>1 arcsin((x+1.5)/27.6881)-arcsin(x/27.6881)>1
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+2)*(x+2))>1 arcsin((x+2)/27.6881)-arcsin(x/27.6881)>1
    sqrt(766.237761-x*x)-sqrt(766.237761-(x+1)*(x+1))>1 arcsin((x+1)/27.6881)-arcsin(x/27.6881)>1
    arcsin((x+3)*(x+3))-arcsin(x*x)>1
    arcsin((x+2)*(x+2))-arcsin(x*x)>1
    arcsin((x+1)*(x+1))-arcsin(x*x)>1
    12x^2-12x＜0

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