（40-x）（10＋x）≥600
    13-4x²＞0
    e^((-3.1415926535*x)/sqrt(1-x^2))<0.35
    k^2+2k-7≥0
    -1<-3x^2+10x-7<1
    x(1-x)^2＞0.2
    x(1-x)^2＞0.1
    2X-1＞=02X-1＜=1
    2X-1＞=0＜=1
    2X-1＞=0
    5x-x^2≥0
    m-1
    abs(x^3+3x^2-5x+10)≥100
    x^2-5-1≥0
    x^2-x-1≥0
    x≤4／x≥6
    x≤4x≥6
    x≤4；x≥6
    -12k＜6
    2＾x≤1

Home page << page347 page348 page349 page350 page351 ... ... page362page page363page page364page page365page page366page >> Last page 1276 pages in total