What is the domain of f(x)=ln((1-x)/(1+x)) ?

The domain of f(x)=ln((1-x)/(1+x)) is -1<x<1

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domain of f(x)=ln((1-x)/(1+x))

domain

f (x) = ln (\frac{1 - x}{1 + x})

- 1 < x < 1

Interval Notation

(- 1, 1)

Solution steps

Find positive values for logs:

- 1 < x < 1

Find undefined (singularity) points:

x = - 1

Combine real regions and undefined points for final function domain

- 1 < x < 1

What is the domain of f(x)=ln((1-x)/(1+x)) ?
The domain of f(x)=ln((1-x)/(1+x)) is -1<x<1