What is the domain of f(x)=-3sqrt(x^2-9) ?

The domain of f(x)=-3sqrt(x^2-9) is x = 3

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domain of f(x)=-3sqrt(x^2-9)

domain

f (x) = - 3 x^{2} - 9

x \leq - 3 or x \geq 3

Interval Notation

(- \infty, - 3] \cup [3, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - 3 or x \geq 3

The function domain

x \leq - 3 or x \geq 3

f (x) = 2 x + y = 5

\frac{7}{\frac{x}{x + 1}}

C (x) = \frac{x - 4}{x ^{2} - 25}

\frac{2 x + 1}{3 x - 2}

g (x) = 3 lo g_{4} (x)

What is the domain of f(x)=-3sqrt(x^2-9) ?
The domain of f(x)=-3sqrt(x^2-9) is x<=-3\lor x>= 3