x^2≥0
    x^4+2x^3+5x^2+4x-4>0
    x^2-2x-3>0
    121-x^2>=0
    sin(x)>0
    cos(x)>0
    2cos(x)+1>0
    x-3＜2022/180 2022/180＜x-2
    a(120-a)-500-30a>1300
    abs(3-2a)<4
    abs3-2a<4
    -1 <= ( 2 * x - 1 ) / 7
     -1 <= ( 2 * x - 1 ) / 7
    10000x
    x^2 +2x+3>=0
    3000p－100p2≥20
    x^2-5/6x+1小于0
    y^3<1
    (16+y)/2<2y+2 1-2y-10≤-19 5(y+0.6)<43
    (16+x)/2<2x+2 1-2x-10≤-19 5(y+0.6)<43

Home page << page134 page135 page136 page137 page138 ... ... page149page page150page page151page page152page page153page >> Last page 1275 pages in total