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

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

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domain of f(x)=f(x)= 2/x

domain

f (x) = f (x) = \frac{2}{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

cos (arctan (x))

\frac{4 - x ^{2}}{x ^{2} + x}

f (x) = 2 \cdot e^{x^{2} - 4 x}

x^{2} + 14 x + 7

f (x) = \frac{4 x + 8}{x - 1}

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