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

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

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domain of sqrt(x^2-2x-3)

domain

x^{2} - 2 x - 3

x \leq - 1 or x \geq 3

Interval Notation

(- \infty, - 1] \cup [3, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - 1 or x \geq 3

The function domain

x \leq - 1 or x \geq 3

y + 5 = - 5 (x - 5)

- 4 x + y = 19, (- 4, 2)

f (x) = \frac{4 x}{x + 9}

\frac{4 x ^{2}}{x ^{2} - 4 x + 4}

\frac{4 x + 3}{x ( x + 3 )}

What is the domain of sqrt(x^2-2x-3) ?
The domain of sqrt(x^2-2x-3) is x<=-1\lor x>= 3