What is the domain of 1/(e^x) ?

The domain of 1/(e^x) is -infinity <x<infinity

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domain of 1/(e^x)

domain

\frac{1}{e ^{x}}

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

+ \frac{36 x ^{2} + 81 x}{( 9 x - 4 ) ^{2}}

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

y = x^{2} + 2 x - 15

y = 7^{x}

y = \frac{x ^{2}}{x - 8}