if f x log 1 x/1-x, f 1 1 x f x 1 x*f x and x log f x 0, f x log 1 x / 1-x then f 2x / 1 x 2, f x x log x 1 x log 1 x taylor expansion, if the function f x log 1+ax, x log 1/x, if fx log e 1-x/1+x, log x+1 - log x, 1/x-x log 1+x/1-x 1, log 1+x / 1-x, x+1 log x+1
if f x log 1 x/1-x. There are any references about if f x log 1 x/1-x in here. you can look below.
if f x log 1 x/1-x
f 1 1 x f x 1 x*f x and x log f x 0
f x log 1 x / 1-x then f 2x / 1 x 2
f x x log x 1 x log 1 x taylor expansion
if the function f x log 1+ax
x log 1/x
if fx log e 1-x/1+x
log x+1 - log x
1/x-x log 1+x/1-x 1
log 1+x / 1-x
x+1 log x+1
if f x log 1 x/1-x, f 1 1 x f x 1 x*f x and x log f x 0, f x log 1 x / 1-x then f 2x / 1 x 2, f x x log x 1 x log 1 x taylor expansion, if the function f x log 1+ax, x log 1/x, if fx log e 1-x/1+x, log x+1 - log x, 1/x-x log 1+x/1-x 1, log 1+x / 1-x, x+1 log x+1
