87.6×117.54^x-51900×106.7%^x≥0
    2000-10*n>0.196*sqrt(n)
    {2x＋3<1 {x>1/2（x－3）
    2x＋3<1 x>1/2（x－3）
    0<180(n-2)-1510<180
    0<1510/[180(n-2)]<180
    0<1510/180(n-2)<180
    2x-4>0 3－x<0
    ((0.2k+(0.2/3.14)^2-0.1)*(0.2k+0.9)-(0.2k+1)*(0.2/3.14)^2)/(0.2k+(0.2/3.14)^2-0.1)>0
    0.2k+(0.2/3.14)^2-0.1>0
    (0.2k+(0.2/3.14)^2-0.1)*(0.2k+0.9)-(0.2k+1)*(0.2/3.14)^2>0
    (0.2k+(0.2/3.14)^2)>0
    100x^2-40000.03842x+4000000≥0
    0.038416x^3-100x^2+40000x-4000000≥0
    x－1>=(x－2)^(2)－1
    x+1>0
    x-1>0
    -2x^3-3x^2 >1
    17/4*x-17>5*x-17*5/4
    1+x>0

Home page << page1271page page1272page page1273 page1274page page1275page >> Last page 1275 pages in total