3(2-2x)>-5(4-x)
    1.6/((10-x)*1.6+55)＜0.5/(26+0.5*x)
    1.6/((10-x)*1.6+55)＜0.5/(16+0.5*x)
    (10-x)*1.6/((10-x)*1.6+55)＜x*0.5/16
    (10-x)*1.6/((10-x)*1.6+55)＜x*0.5/26
    (10-x)*1.6/((10-x)*1.6+55)＞x*0.5/26
    （a-1/2）^2≤5/4
    15sinx+8cosx大于等于
    0＜lnx+1<1
    m²+54m+225＞0
    0≤arcsin(2x－1)≤2/π
    arcsin(2x－1)≤2/π
    (x-1)^2-4*(x-1)*(1-3x)>=0
    ((x-1)*(x-2))/((x+1)*(x+2))>1
    (x+5)/(x-3)>1
    (x+3)/(x+2)<2
    (4x^2-x-3)/(2x^2-x-3)<=1
    (y-1)^2-4(y-1)(1-3y)>=0
    （1-y）^2-4(2y-4)(3-3y)>=0
    2x>-2

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