" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
f(-x) = (- x + 1) / (- x - 1)
= -(x - 1) / -(x + 1)
= (x - 1)/(x + 1)
= 1/f(x)
x-1
f(-x) = -x+1
-x-1