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

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

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

domain

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

\frac{7 x + 6}{x - 5}

+ 7 - 6 cos (θ)

y = \frac{x ^{2} - 4}{x ^{2} - 2 x}

(x - 1)^{2} + 2

y = 1 + sin (2 x)

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