10-4(x-3)≤2(x-2)
    x+1/1-x>=0
    sinx>-1
    x^2+x+2>0
    3+5*（X-32）
    3x−7>20
    14≥3x−7
    3/1-1≦2
    (1-a)^2-8(1-a^2)＜0
    (x-276)/296<(x-278)/278
    860.7/{0.098*x^3-0.098*(x-0.004)^4/x}=150000000
    1900.8/{0.098*x^3-0.098*(x-0.004)^4/x}=150000000
    633.5/{0.098*x^3-0.098*(x-0.004)^4/x}=150000000
    475.2/{0.098*x^3-0.098*(x-0.004)^4/x}=150000000
    475.2/{0.098*x^3-0.098*(x-0.008)^4/x}=150000000
    475.2/{0.098*x^3-0.098*(x-0.008)^4/x}=150
    475.2/{0.098*x*3-0.098*(x-0.008)^4/x}=150
    113090/(x^4-(x-0.04)^4)>150
    4848.98/(x^4-(x-0.04)^4)>150
    4848398/（x^4-(x-0.04)^4)>150

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