What is the domain of (7/x)/(7/x+7) ?

The domain of (7/x)/(7/x+7) is x 0

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domain of (7/x)/(7/x+7)

domain

\frac{\frac{7}{x}}{\frac{7}{x} + 7}

x < - 1 or - 1 < x < 0 or x > 0

Interval Notation

(- \infty, - 1) \cup (- 1, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = - 1, x = 0

The function domain

x < - 1 or - 1 < x < 0 or x > 0

x^{2} + x + 2

f (x) = 6 x

y = - 2

f (x) = \frac{( 1 - 5 x )}{2}

f (x) = \frac{x - 5}{x}

What is the domain of (7/x)/(7/x+7) ?
The domain of (7/x)/(7/x+7) is x<-1\lor-1<x<0\lor x>0