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

The domain of (x^2+1)/(x^2) is x 0

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domain of (x^2+1)/(x^2)

domain

\frac{x ^{2} + 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

\frac{2 x}{5 x - 6}

f (x) = \frac{3}{x ^{2} - 36} + x - 2

\frac{\frac{x}{x - 3}}{( \frac{x}{x - 3} ) - 3}

f (x) = ln (x^{2} + 3 x - 18)

- 3 x^{3} + 10 x^{2} - 13 x + 11

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