Originally posted by aiglosicicle:
there is this inequalities math question that appears
pretty easy but i cant seem to solve it.
its really bugging me and i have to solve it! haha
hope some people here can help!
[b](x+1)/(x-1) [smaller or equals to] x
[/b]
(x+1)/(x-1) <= x
x+1 <= x(x-1)
x+1 <= x^2-x
0 <= x^2-x-x-1
x^2-2x-1 >= 0
using quad equation:
x >= 2.414 or -0.4142
as tis is an inequalities question, hence
x must be more than or equal to 2.414 or (1+sqrt(2))
