What is the domain of f(x)=((9/x))/((9/x)+9) ?

The domain of f(x)=((9/x))/((9/x)+9) is x 0

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domain of f(x)=((9/x))/((9/x)+9)

domain

f (x) = \frac{( \frac{9}{x} )}{( \frac{9}{x} ) + 9}

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

- 2 x^{2} - 2 x - 2

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

f (x) = 2 sin (3 x - π) + 4

(- 1, - 6), (3, 0)

H = - 0.65 (x + 20) + 143

What is the domain of f(x)=((9/x))/((9/x)+9) ?
The domain of f(x)=((9/x))/((9/x)+9) is x<-1\lor-1<x<0\lor x>0