What is the domain of f(x)= 7/x-9/(x+9) ?

The domain of f(x)= 7/x-9/(x+9) is x 0

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

domain of f(x)= 7/x-9/(x+9)

domain

f (x) = \frac{7}{x} - \frac{9}{x + 9}

x < - 9 or - 9 < x < 0 or x > 0

Interval Notation

(- \infty, - 9) \cup (- 9, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0, x = - 9

The function domain

x < - 9 or - 9 < x < 0 or x > 0

1.5 cos (6 x - 3.2)

\frac{4 x ^{2}}{x ^{2} - 9}

f (x) = x + 7 - x

6 x^{2} - 54 x + 120

f (x) = \frac{1}{2 x + 3}

What is the domain of f(x)= 7/x-9/(x+9) ?
The domain of f(x)= 7/x-9/(x+9) is x<-9\lor-9<x<0\lor x>0