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

The domain of f(x)=1-1/(x^2) is x 0

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

domain

f (x) = 1 - \frac{1}{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

y = 0.3 (x - 4)^{2} - 7.5

\frac{7}{7 x}

\frac{- x + 5}{- 4 x + 8}

y = \frac{x ^{2} - 4 x + 3}{x - 1}

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

What is the domain of f(x)=1-1/(x^2) ?
The domain of f(x)=1-1/(x^2) is x<0\lor x>0