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

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

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

domain

- \frac{2 x}{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{x + 4}{x ^{2} - 49}

f (x) = - lo g_{10} (3 x - 2) + 3

x^{0.5}

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

f (3) = x + 1 + 4

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