What is the domain of f(x)=((x+2))/((x^2-1)) ?

The domain of f(x)=((x+2))/((x^2-1)) is x 1

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domain of f(x)=((x+2))/((x^2-1))

domain

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

x < - 1 or - 1 < x < 1 or x > 1

Interval Notation

(- \infty, - 1) \cup (- 1, 1) \cup (1, \infty)

Solution steps

Find undefined (singularity) points:

x = 1, x = - 1

The function domain

x < - 1 or - 1 < x < 1 or x > 1

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

\frac{1}{x ^{2} + 4}

f (x) = \frac{3 x - 4}{7}

y = \frac{3}{x + 2}

f (x) = ln (\frac{x + 3}{x - 3})

What is the domain of f(x)=((x+2))/((x^2-1)) ?
The domain of f(x)=((x+2))/((x^2-1)) is x<-1\lor-1<x<1\lor x>1