tanx＜sinx＜100^lnx+10^ln(90-x)
    tanx＜x
    tan90*x＞0
    2≥(1+tanx)(1+tan(45-x))≥2
    1.99＜(1+tanx)(1+tan(45-x))＜2.01
    absx+1≥0≥-xx
    absx≥0≥-xx
    !(5)+0x＞10
    !(x)＞10
    1/sinx≥1
    1:x＜abs(lglglgx)＜3
    lglglgx＞-3
    lg(xx-4x-21)+sqrtx-sqrtx＜2
    lg((tanx:sqrt(x+x^0))+1)/x＜0
    tanx＜acosx
    (1+1:x)^x＞2.72
    (1+1:x)^x＞e
    1＜x＜ex＜70＜x^x
    -7m^2+20m+4≥0
    300/x>x+5

Home page << page810 page811 page812 page813 page814 ... ... page825page page826page page827page page828page page829page >> Last page 1275 pages in total