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Popular >

domain of x/(x^2-81)

Solution

domain

\frac{x}{x ^{2} - 81}

Solution

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

+1

Interval Notation

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

Solution steps

Find undefined (singularity) points:

x = 9, x = - 9

The function domain

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

Popular Examples

domain of sqrt(2x-10)domain

2 x - 10

domain of f(x)=2x^2-8x+6 domain

f (x) = 2 x^{2} - 8 x + 6

domain of sqrt(2x-14)domain

2 x - 14

domain of f(x)=sqrt(8x-1)domain

f (x) = 8 x - 1

domain of (x^2)/((x+2)^2)domain

\frac{x ^{2}}{( x + 2 ) ^{2}}

Frequently Asked Questions (FAQ)

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