What is the domain of f(x)= 7/(7/x) ?

The domain of f(x)= 7/(7/x) is x 0

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domain of f(x)= 7/(7/x)

domain

f (x) = \frac{7}{\frac{7}{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{x}{x + 3}

f (x) = \frac{2}{x + 1} \cdot 1 - x

\frac{2 x ^{2} - 3 x - 9}{x}

m < 6

f (x) = ln (x + 7) - ln (3) + 1

What is the domain of f(x)= 7/(7/x) ?
The domain of f(x)= 7/(7/x) is x<0\lor x>0