What is the domain of y=(2^{2-x})/x ?

The domain of y=(2^{2-x})/x is x 0

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domain of y=(2^{2-x})/x

domain

y = \frac{2 ^{2 - x}}{x}

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{1}{x - 9}

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

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

x^{9} - 6 x^{4} + 9

f (x) = 3 x + 24

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