x^(2/3)-x^(-1/2)<0
    x^2/3-1/x^1/2<0
    3x-x^2大于等于-10
    2sinx-1＞0
    x^2-24x+400<0
    4a∧2＜4
    200-a<=a<=200
    (X-5)/2-(4X-3)/3<1
    3X+6<=5(X-1)
    (7*t^2 - 1)*(7*t^2 - 6*t + 1)>0
    (14*t - 6)*(7*t^2 - 1) + 14*t*(7*t^2 - 6*t + 1)>0
    x^2－89x+1600＜0
    x-1/6-x-1>=4x+1/2
    x-5/2 +1>x-3
    6x+16>x-4
    -20*(x-35)^2+22500≥4180
    -20(x-35)²+22500≤4480
    4x^2+2x-50>0
    254+2254>X×2
    3+x>0 7-x<0

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