0.0808*x＋0.0315*(1-x)>0.065 0.0616*x＋0.0074*(1-x)<0.05
    0.0808*x＋0.0315*(1-x)>0.065 0.0616*x＋0.0074*(1-x)<0.045
    0.0808*x＋0.0315*(1-x)>0.06 0.0616*x＋0.0074*(1-x)<0.05
    0.0808*x＋0.0315*(1-x)>0.06
    -1≤2x+1/3≤1
    x(x*x+5x+4)>0
    x+9÷x＞6
    280-（x-40）/2*20≥130
    280-x-40/2*20≥130
    280-10x≥130
    x^2-1.1x+0.3≥0
    x/(x^2+4)>0
    m^7*（5.1-4m）＜=1.1
    3 * sin x ^ 2 + sin x ^ 3 + sin x ^ 4 <1
    3sinx^2+sinx^3+sinx^4<1
    3sinx^2+sinx^3+sinx^4>1
    3sinx^2+sinx^3+sinx^4>=
    3/2x +1≦-2
    2(25x-150/x+50)≥1500
    25x-150/x+50≥1500

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