what is the domain of f (x) = cos (x) ? A. the set of real numbers - 2pi ≤ x ≤ 2pi B. the set of real numbers - 1≤x≤1 C. the set of real numbers 0≤x≤2pi D. the set of all real numbers

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Mathematics

Kaya

15 April, 00:06

what is the domain of f (x) = cos (x) ? A. the set of real numbers - 2pi ≤ x ≤ 2pi B. the set of real numbers - 1≤x≤1 C. the set of real numbers 0≤x≤2pi D. the set of all real numbers

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Answers (1)

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Jonas Sampson · Answer 1

Answer: D. the set of all real numbers

Step-by-step explanation:

The domain of cos x and sine x are set of real numbers, that is the domain is

{-∞, + ∞}