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

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

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

domain

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

(- 2, 1), (5, 0)

y = - 2 x, (- 3, 6)

- \frac{7}{4 x - 5}

(x^{2} - 35)^{6}, x = 5

f (x) = x^{3} + 5

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