-3x^2+36x>105
    0<36-3x<20
    (2(x+1))^2-4(x^2-1)>0
    （2（x+1））^2-4（x^2-1）<0
    12k-(k^2+k-6)^2<0
    12k-(k^2+k-6)<0
    -x^2+x≥0
    10^(-n)<0.0006
    x²+7x+12<0
    x^2-2x-3<=0
    abs(sin(x)*x)≤abs(x)
    abs(sin(x)*x)≥abs(x)
    2x^2-3x+4<1
    x^2+6x+10>0
    x^2-2sqrt（5）x+sqrt（5）>0
    x-1/x>=2
    x-1/2>=2
    2x-1/3x+6≥0
    a²-4a-8≥0
    2m²-5m+2＞0

Home page << page411 page412 page413 page414 page415 ... ... page426page page427page page428page page429page page430page >> Last page 1276 pages in total