What is the domain of f(x)=(x^2-3)/(x^2+1) ?

The domain of f(x)=(x^2-3)/(x^2+1) is -infinity <x<infinity

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domain of f(x)=(x^2-3)/(x^2+1)

domain

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

- \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

2 cos (x) - 1

x^{2} - 5 x - 6

f (x) = - 2 x^{2} + 8 x - 5

\frac{4}{x + 8}

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

What is the domain of f(x)=(x^2-3)/(x^2+1) ?
The domain of f(x)=(x^2-3)/(x^2+1) is -infinity <x<infinity