2<0.095r+1.095((60^2)/(24r)-(60^4)/(2688(r^5)))<20
    2<0.113r+166.95/r-5366.25/(r^4)<20
    2<0.113r+1.113(60^2/(24r)-60^4/2688)<20
    0.113r^4+20r^3+166.95r^2-5366.25<0
    0.113r^4+2r^3+166.95r^2-5366.25>0
    16+0.1x<0.6x
     0.6*1.12^x/2*1.08^(x/2-1)>0.5
    n≥3/2(100-n）
    0.4*(1.12*1.08)^[(x-1)/2]>0.5
    120n+90(100-n)≦10500
    n≥(3÷2)(100-n)
    5x-1>3x-4 2/3-x>=-1/3
    5x-1>3x-4
    (2.5-1.25K-0.125K^2)/(2.5-0.25K)>0
    x-55-100*1%-x*1%≥20
    x-55-100×1%-x×1%≥20
    (1.95x+360)*2.38*0.65>(1.7x+360)*2.53*0.85
    (1.95x+360)*2.38*0.9>(1.7x+360)*2.53*1.05
    (1.95x+360)*2.38>(1.7x+360)*2.53
    0

Home page << page972 page973 page974 page975 page976 ... ... page987page page988page page989page page990page page991page >> Last page 1275 pages in total