What is the domain of f(x)=(3x)/(x^2-1) ?

The domain of f(x)=(3x)/(x^2-1) is x 1

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domain of f(x)=(3x)/(x^2-1)

domain

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

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

Solution steps

Find undefined (singularity) points:

x = 1, x = - 1

The function domain

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

f (x) = 3 \cdot 2 x - 1

f (x) = (x + 4)^{2} - 1

cos (sec (x))

(3.5) (6.8)

f (x) = \frac{2 x - 25}{3 + x}

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