x(x+1)(x-8)>0
    35-2x≤18
    0≤log(x^2+1,1)≤0
    0<1/(x^2+1)<2
    exeex＞4000
    ex≥0
    abssinx＞absx
    tanx＞x
    x-4<24-3x
    3x-4>24-3x
    2x+9>11
    2x+3≥7
    35r−21<−35r+19
    8x+31<23
    4x−39>−43
    5x−83≥−73
    −25x+175>225
    17x−16>18
    3x−91>−87
    (1-x)^3(x+3)^2(x+4)^4>=0

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