What is the domain of f(x)=cos(e^{-x}) ?

The domain of f(x)=cos(e^{-x}) is -infinity <x<infinity

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domain of f(x)=cos(e^{-x})

domain

f (x) = cos (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 - 4}{3 x + 7}

f (x) = 2 x - 5

f (x) = 3 x^{2} - 3 x + 1

f (x) = \frac{x ^{3}}{x ^{2} + 5}

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

What is the domain of f(x)=cos(e^{-x}) ?
The domain of f(x)=cos(e^{-x}) is -infinity <x<infinity