What is the domain of 2cos(2x) ?

The domain of 2cos(2x) is -infinity <x<infinity

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domain of 2cos(2x)

domain

2 cos (2 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

π - 2

x + \frac{1}{x} + \frac{1}{x + \frac{1}{x}}

e^{2 x^{2}}

f (x) = \frac{8 + x}{e ^{c o s (x)}}

- 12 + 12 x - 3 x^{2}

What is the domain of 2cos(2x) ?
The domain of 2cos(2x) is -infinity <x<infinity