What is the domain of f(x)=(2x)/(x^2+81) ?

The domain of f(x)=(2x)/(x^2+81) is -infinity <x<infinity

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domain of f(x)=(2x)/(x^2+81)

domain

f (x) = \frac{2 x}{x ^{2} + 81}

- \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) = - 3 x^{2} + 5

f (x) = lo g_{5} (x - 1)

f (x) = 5 csc (x)

x^{3} - 7 x + 6

y = 180 x - 0.3 x^{3}

What is the domain of f(x)=(2x)/(x^2+81) ?
The domain of f(x)=(2x)/(x^2+81) is -infinity <x<infinity