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

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

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domain of (x^3)/(x^2+1)

domain

\frac{x ^{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

f (x) = \frac{ln ( x ^{2} - 9 )}{- x ^{2} + x - 12}

f (x) = lo g_{10} (x - 4)

\frac{( 4 a ^{2} - 20 a + 25 )}{25 - 4 a ^{2}}

\frac{1}{2} x - 3

f (x) = - x + 2

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