x<=cos(x)
    x<=sin(x)
    -（x^2-6x+5)≥0
    X- 1小于x/3+1
    240x+180(3/2x+5)≤21300
    abs(2x-1)>3x
    x^2-4*x-5<0
    x^2-4x-5<0
    a≤150-3a
    4*4^n+27n>=6070
    4*4^n+27n>=6.70
    0<=X<=1
    1000＜0.3X＜2000
    1000＜0.7X＜2000＜3000
    6x-9<0
    （n^2+3n）/2>200
    3>2x
    -tan(2x-3/4π)≥0
    x+3>=0
    x-5>=0

Home page << page303 page304 page305 page306 page307 ... ... page318page page319page page320page page321page page322page >> Last page 1275 pages in total