What is the domain of f(x)=(2^x)/(1+2^x) ?

The domain of f(x)=(2^x)/(1+2^x) is -infinity <x<infinity

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domain of f(x)=(2^x)/(1+2^x)

domain

f (x) = \frac{2 ^{x}}{1 + 2 ^{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 - 4}{2 x - 8}

f (x) = \frac{x ^{2} + 5 x}{x ^{2} + 4 x + 4}

\frac{4}{5 + x}

\frac{9 x + 41}{- 8 x - 61}

\frac{1}{y + 2}

What is the domain of f(x)=(2^x)/(1+2^x) ?
The domain of f(x)=(2^x)/(1+2^x) is -infinity <x<infinity