What is the domain of f(x)=(sqrt(x^2-4)) ?

The domain of f(x)=(sqrt(x^2-4)) is x = 2

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domain of f(x)=(sqrt(x^2-4))

domain

f (x) = (x^{2} - 4)

x \leq - 2 or x \geq 2

Interval Notation

(- \infty, - 2] \cup [2, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - 2 or x \geq 2

The function domain

x \leq - 2 or x \geq 2

f (x) = \frac{2 x - 7}{- x + 2}

f (x) = \frac{6 e ^{x}}{e ^{x} - 3}

f (x) = c

\frac{e ^{x} - e ^{- x}}{2}

f (x) = (8 x + 10)^{5}

What is the domain of f(x)=(sqrt(x^2-4)) ?
The domain of f(x)=(sqrt(x^2-4)) is x<=-2\lor x>= 2