What is the domain of f(x)=sqrt(x^2-81) ?

The domain of f(x)=sqrt(x^2-81) is x = 9

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

domain of f(x)=sqrt(x^2-81)

domain

f (x) = x^{2} - 81

x \leq - 9 or x \geq 9

Interval Notation

(- \infty, - 9] \cup [9, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - 9 or x \geq 9

The function domain

x \leq - 9 or x \geq 9

(64) (- 4 - 6)

f (x) = \frac{5 x - 3}{3 x - 1}

800 q - q^{2}

f (x) = 8 x

sin (3 x)

What is the domain of f(x)=sqrt(x^2-81) ?
The domain of f(x)=sqrt(x^2-81) is x<=-9\lor x>= 9