60x+48*（60-x）≤3000
    3000x+(100-x)*800<=168000
    1.7x>=100-x
    x/sqrt(1-x^2)>0.732
    5(3-2x)-2(3x-2)>=6x
    -5/4[4/3(-3/2-12x)+4x]<=-(3x-1)/4
    -5/4[4/3(-3/2-12x)+4x]<=-(4x-1)/4
    （x+100)/240-x/280>0.6
    3x < 16x + 1
    -3x-1>3 2x+1>3
    -3x-1>3 2x+1>3
    -3x-1>3 2x+1>3
    2a-1>0 3-a<0 2a-1<0 3-a>0
    (m+1)/2<=1 (m-1)/4<=1
    X +4 ≤3( X +2 ）
    (40+5m)/3<0 (5m-11)/3<0
    m*(32-log(2,(2^32+m)))>1
    1/2 >(1-m/2^32)^m
    2x≤-4
    -x>-3

Home page << page568 page569 page570 page571 page572 ... ... page583page page584page page585page page586page page587page >> Last page 1276 pages in total