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

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

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

domain

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

- \infty < x < \infty

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

y = - 3 x^{2} - 2 x + 5

(1, - 4), (- 2, 5)

\frac{x + 5}{x ^{2} + x - 6}

y = lo g_{\frac{1}{5}} (x)

f (x) = \frac{4 x}{9} - \frac{28}{9}

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