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

f (x) = 3 x^{2} - 5 x - 6

- 3^{x}

f (x) = 4 x^{2} - 9

\frac{4 x ^{2}}{x ^{2} - 25}

y = ln (2 x^{2} - 5 x + 8)

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