-x≤2
    -x^2+3≥1
    -3x+3≤0
    4t^4-9t^2-t+4<0
    30000x+x/9>497415
    4x^2+10x-6>8
    -900x+50000<=39200 -100x+10000>=8500
    -900x+50000<=39200
    5x+2>3(x-1) (1/2)x-1<7-(3/2)x
    (2x-1)/3>(3x-5)/4 (x+2)/4-x/5>1
    2x+6>7x-4 (4x+2)/5>(x-1)/2
    -3(x-2)>4-x (1+2x)/3>x-1
    x^2+x<0
    25x-4.6x>73.6+20
    20.4x>93.6
    160≤400/(a-20)≤240
    1/x<0.001966
    80*x+100*(300-x)≤26800
    exp(x)>0.99803640784
    3000x+(40-x)3200≥123200

Home page << page977 page978 page979 page980 page981 ... ... page992page page993page page994page page995page page996page >> Last page 1276 pages in total