100x+60(100-x)<=8080
    2x<2
    -(-42.70206*x-4555.74*(1-x)) ≥2.33*(sqrt(88.66814*x^2+40551.12*(1-x)^2))
    -(-0.008540412*x-0.911148*(1-x)) ≥ 2.33*(sqrt(0.01773363*x^2+8.110223*(1-x)^2))
    -(-0.008540412*x-0.911148*(1-x)) ≤2.33*(sqrt(0.01773363*x^2+8.110223*(1-x)^2))
    3×800+80(x－9)＞0.8(3×800+80x)
    15（60－x）＋20x≥1000
    -t^2+30t-105>0
    a^2+4>0
    a^2-12*a+4>0
    1985*x+102060/x<8315
    5x+18000-15x < (25x+(1200-x)45)0.3
    5x^2≤22x-4
    22x-4≥5^2
    ((-10117010*x)+204269700*(1-x))/(sqrt(204269700*x^2+518921850000*(1-x)^2)) ≤10000
    33816*x/(43577537+x)*3.88-x*0.003>0.2
    33816.63*x/(43577537.98+x)*3.88-x*0.003>0.3
    33816.63*x/(43577537.98+x)*3.88-x*0.003 >0.11
    (1+0.25x)^2>1.25^x
    0.25x^2 > 1.25^x

Home page << page1042 page1043 page1044 page1045 page1046 ... ... page1057page page1058page page1059page page1060page page1061page >> Last page 1275 pages in total