What is the domain of-2^{-x} ?

The domain of-2^{-x} is -infinity <x<infinity

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domain of-2^{-x}

domain

- 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) = 4 cos (\frac{1}{x})

f (x) = - 3 x + 2, - 4 \leq x \leq 3

f (x) = \frac{8 - x}{x ^{2} - 7 x + 12}

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

f (x) = \frac{\frac{x}{x + 8}}{\frac{x}{x + 8} + 8}