What is the domain of f(x)=sqrt(x+3)+sqrt(x-3) ?

The domain of f(x)=sqrt(x+3)+sqrt(x-3) is x>= 3

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domain of f(x)=sqrt(x+3)+sqrt(x-3)

domain

f (x) = x + 3 + x - 3

x \geq 3

Interval Notation

[3, \infty)

Solution steps

Find non-negative values for radicals:

x \geq 3

The function domain

x \geq 3

∣ x ∣ + 1

\frac{x ^{3}}{2 x ^{2} - 8}

f (x) = 3 x^{4} - 18 x^{3} + x - 7

f (x) = 2

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

What is the domain of f(x)=sqrt(x+3)+sqrt(x-3) ?
The domain of f(x)=sqrt(x+3)+sqrt(x-3) is x>= 3