Mathematics, 08.04.2020 00:05, kutsevjulianna

What is the domain of f(x) = cos(x)?

A)the set of real numbers Negative 2 pi less-than-or-equal-to x less-than-or-equal-to 2 pi
B)the set of real numbers Negative 1 less-than-or-equal-to x less-than-or-equal-to 1
C)the set of real numbers 0 less-than-or-equal-to x less-than-or-equal-to 2 pi
D)the set of all real numbers

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What is the domain of f(x) = cos(x)?

A)the set of real numbers Negative 2 pi less-than-...