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Popular >

domain of 1/(x^2-9)

Solution

domain

\frac{1}{x ^{2} - 9}

Solution

x < - 3 or - 3 < x < 3 or x > 3

+1

Interval Notation

(- \infty, - 3) \cup (- 3, 3) \cup (3, \infty)

Solution steps

Find undefined (singularity) points:

x = 3, x = - 3

The function domain

x < - 3 or - 3 < x < 3 or x > 3

Popular Examples

inverse of f(x)=-5/8 n+15/8 inverse

f (x) = - \frac{5}{8} n + \frac{15}{8}

inverse of (x-1)(x+2)inverse

(x - 1) (x + 2)

inverse of f(x)=9-x^2 inverse

f (x) = 9 - x^{2}

slope ofintercept 4x+3y=-3 slope intercept

4 x + 3 y = - 3

extreme f(x)=2x^2+14x-25 extreme points

f (x) = 2 x^{2} + 14 x - 25

Frequently Asked Questions (FAQ)

What is the domain of 1/(x^2-9) ?
The domain of 1/(x^2-9) is x<-3\lor-3<x<3\lor x>3