What is the domain of f(x)=(x^2-9)/(x^2) ?

The domain of f(x)=(x^2-9)/(x^2) is x 0

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domain of f(x)=(x^2-9)/(x^2)

domain

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

x < 0 or x > 0

Interval Notation

(- \infty, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0

The function domain

x < 0 or x > 0

\frac{ln ( x ^{2} )}{e ^{2 x} - e}

f (x) = \frac{3 x}{x - 6}

3 - 2 x + 1

f (x) = 4 - 24 - 2 x - x^{2}

2 - 4 x

What is the domain of f(x)=(x^2-9)/(x^2) ?
The domain of f(x)=(x^2-9)/(x^2) is x<0\lor x>0