What is the domain of f(x)=(-1)/(1+x) ?

The domain of f(x)=(-1)/(1+x) is x -1

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domain of f(x)=(-1)/(1+x)

domain

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

x < - 1 or x > - 1

Interval Notation

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

Solution steps

Find undefined (singularity) points:

x = - 1

The function domain

x < - 1 or x > - 1

f (x) = x - 4 x^{2} - 9 g (x) = 1 x + 3

f (x) = \frac{1}{x ^{2} 2 x - 8}

f (x) = \frac{4}{x ^{2} + 100}

f (x) = 7 - x + x^{5}

g (x) = \frac{2}{x - 1}

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