x^2+x-12<0
    e^x-1>tanx
    tanx>ex-1
    -2x＋x－6＜0
    1/x+lnx＞1
    8-t>√9+t^2
    8-t>9+4t^2
    8-t>2t
    2x-3<5 3x+2>=-1
    80x+1440<64x+1728
    3*sin(π/6-3*x)+1<2.5
    3sin（π/6-3x）+1<2.5
    x(x+sqrt(x2+1))(x2+1)12+1(x+sqrt(x2+1))>0
    -120x^2+180x-60>0
    a^2-8a+25>0
    x/(2x-1)＞1
    2－k＞0 －k－1＞0
    0.375x+6.75＞4
    2－k＞0 1－k＞0
    2－k＞0 1+k＞0

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