What is the domain of f(x)= 9/(1-e^x) ?

The domain of f(x)= 9/(1-e^x) is x 0

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domain of f(x)= 9/(1-e^x)

domain

f (x) = \frac{9}{1 - e ^{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

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

f (x) = \frac{3 e ^{x}}{e ^{x} - 4}

f (x) = \frac{7 - 4 x}{8 + 3 x}

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

f (x) = - x^{2} + 3 x - 2

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