What is the domain of f(x)=((e^x))/(1+e^x) ?

The domain of f(x)=((e^x))/(1+e^x) is -infinity <x<infinity

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domain of f(x)=((e^x))/(1+e^x)

domain

f (x) = \frac{( e ^{x} )}{1 + e ^{x}}

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

f (x) = \frac{x ^{2} - 9}{x + 1}

6 - x - x^{2}

f (x) = e^{x} + 2 x = 0

f (x) = \frac{x + 5}{x - 2}

f (x) = \frac{x + 2}{4 x - x ^{3}}

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