5x^7+e^2x<=0
    x+3≥5
    35*b*b+(96+16*sqrt(3))*b-120<0
     -9.172x^2 + 56.66x - 1.8206>85
    -0.0193x^2 + 1.0988x + 71.992>85
    -0.02x^2 + 1.1306x + 70.527>85
    -9.172x^2 + 56.66x - 1.8206>85
    -9.172x^2 + 56.66x - 1.8206<85
    （2/x）+2＞0
    2/x+2＞0
    3y+5<=300
    4y+5<=300
    mx^2-mx+2>0
    0＜a^2＜12
    0
    arcsin(140/m)<=arctan(1/0.7)
    4（sina）^3-2（sina）+3＞0
    c<3c-6
    -x2+10x-24<0
    1-2/3(x-1)≤2-(4/3)x

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