（35/（0.5A-0.01））+(20/(0.5A-0.02))≤(16/0.06)
    4+x>5x-24
    n*(0.5)^n<0.1
    （35/（0.5A-0.03））+(20/(0.5A-0.02))≤(16/0.03)
    （16/（0.5A-0.03））+(35/(0.5A-0.05))≤(20/0.02)
    20.5+93x<21+67.5x
    20.5+93x<21+67.5
    4x^2+79x≥43.57
    4x^2+79x≥21.6*338.31/92.4
    4x^2+79x≥82.75
    5x-4≥2+7x
    0<0.5-(0.01(2-0.02)x)/(4*0.04*(1-x))<1
    0<0.5-(0.1(2-0.02)x)/(4*0.04*(1-x))<1
    -0.05
    （16/（0.5A-0.03））+(20/(0.5A-0.02))≤(25/0.05)
    （16/（0.5A-0.03））+(20/(0.5A-0.02))≤(35/0.05)
    3cos(x)>2(sin(x)^2)
    (（1.9343+0.203*x)*10^6)/((47x^2)/6)<16
    (（1.9343+0.203x)*10^6)/((47x^2)/6)<16
    （1.9343+0.203x)*10^6/(47x^2/6)<16

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