ln（-1/a）≤3
    x/8-（x-1）/4≤x-3
    －2x^3+3x^2－2x+3≤0
    （x^2+1）（－2x+3）≦0
    2x－1/x－7≦1
    （2x+1）（x－7）≦1
    2x^2－13x－8≥0
    2x+1/x－7≦1
    （2*（t-3.3)+0.8*9)*(50.16+8.6*t)/(7.2+t)≥144
    (4a+1)/6<-2
    （2*（t+1.5)+0.8*9)*(83.69+8.5*t)/(11.5+t)≥144
    4a+1/6>0
    （2*（t-1.5)+0.8*9)*(62.7+8.6*t)/(9+t)≥144
    (2*（t+1.5)+0.8*9)*(93.78+9.1*t)/(12+t)≥144
    (2*（t+1.5)+0.8*9)*(93.78+9.1*t)/(12+t)≥1.6
    3x＋2＞4
    (50+x)(600-5x)>=3300
    -3a+2>0
    168-x-x*10％/4×3≥30
     4x-3<6x+3 1.5x-1>5-0.5x

Home page << page599 page600 page601 page602 page603 ... ... page614page page615page page616page page617page page618page >> Last page 1275 pages in total