What is the domain of f(x)=-sqrt(x^2) ?

The domain of f(x)=-sqrt(x^2) is -infinity <x<infinity

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domain of f(x)=-sqrt(x^2)

domain

f (x) = - x^{2}

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

Find non-negative values for radicals:

- \infty < x < \infty

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

- \infty < x < \infty

f (x) = \frac{x ^{2} + x - 2}{x ^{2} - 3 x - 4}

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

f (x) = 3 x - 5

f (x) = \frac{4}{x ^{2} + 1}

f (x) = \frac{2}{5 + x}

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