What is the domain of f(x)=-4/(1+x^2) ?

The domain of f(x)=-4/(1+x^2) is -infinity <x<infinity

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domain of f(x)=-4/(1+x^2)

domain

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

- \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) = 5 x + 5

4 - 3 x - x^{2}

2 x^{4} - x^{2}

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

f (x) = \frac{3}{1 - 2 x} g (x) = \frac{1}{x}

What is the domain of f(x)=-4/(1+x^2) ?
The domain of f(x)=-4/(1+x^2) is -infinity <x<infinity