What is the domain of f(x) = cos(x)?
the set of real numbers Negative 2 pi less-than-or-equal-to x less-than-or-equal-to 2 pi
the set of real numbers Negative 1 less-than-or-equal-to x less-than-or-equal-to 1
the set of real numbers 0 less-than-or-equal-to x less-than-or-equal-to 2 pi
the set of all real numbers

Option D: The set of all real numbers

Explanation:

Given that the function

We need to determine the domain of the function.

The domain of the function is the set of all input values for which the function is real and well defined.

In other words, the domain of the function is the set of all independent x - values of the function.

Thus, the function cos (x) is real and well defined in the interval

Hence, the function cos (x) is real and well defined for all real numbers.

Therefore, the domain of the function is the set of all real numbers.

Hence, Option D is the correct answer.

side side side

side angle angle

angle side angle

side angle side

step-by-step explanation:

4 inches will get you 10.16 centimeters, but you can either do 10.1 or round up to 10.2. good luck and hope this : )