16（a*a-3）＜（1+a*a）(a*a+1)(3*a*a+39)
    -2x+3>0
    m^2+19m-42<0
    85%z+90%（800-z）≥800×88%
    x^2-3x＞216/x
    0
    (x+3)/(x^2-x+1)>=0
    2x-3<=1/2(x+2)
    3x-5<2(2+3x)
    3x>-1
    x-17<-15
    x+sqrt(x^(2)+1)＞0
    （a-2）(a+1)>1
    56+2x-2<25x
    （X+2）(1500-10X)>3000
    2x＜0
    3000≥20x＋30（x－5）
    x*(x-1)*(x-2)*(x-3)≥1000
    x*(x-1)(x-2)(x-2)≥100
    1÷a-1≥1

Home page << page796 page797 page798 page799 page800 ... ... page811page page812page page813page page814page page815page >> Last page 1276 pages in total