What is the domain of f(x)=(x-3)/(x+3) ?

The domain of f(x)=(x-3)/(x+3) is x -3

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domain of f(x)=(x-3)/(x+3)

domain

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

x < - 3 or x > - 3

Interval Notation

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

Solution steps

Find undefined (singularity) points:

x = - 3

The function domain

x < - 3 or x > - 3

\frac{3 x ^{3} - 30 x + 76}{x ^{2} - 10 x + 25}

f (x) = 3 e^{x - 2}

3 x^{2} - 6 x - 9 = 0

1 - \frac{1}{1 - x}

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