What is the domain of sqrt(x^2-7) ?

The domain of sqrt(x^2-7) is x = sqrt(7)

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domain of sqrt(x^2-7)

domain

x^{2} - 7

x \leq - 7 or x \geq 7

Interval Notation

(- \infty, - 7] \cup [7, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - 7 or x \geq 7

The function domain

x \leq - 7 or x \geq 7

ln (x + 3)

\frac{2 x - 7}{x + 3}

f (x) = \frac{5 x ^{2} - 6 x + 8}{6 x ^{7} + 7 x + 15}

f (x) = x 400 - x^{2}

\frac{x}{x ^{2} + 15 x + 54}

What is the domain of sqrt(x^2-7) ?
The domain of sqrt(x^2-7) is x<=-sqrt(7)\lor x>= sqrt(7)