what is the domain of (f(x)=cos(x))?\n the set of real numbers (-2pileq xleq2pi)\n the set of real numbers…

what is the domain of (f(x)=cos(x))?\n the set of real numbers (-2pileq xleq2pi)\n the set of real numbers (-1leq xleq1)\n the set of real numbers (0leq xleq2pi)\n the set of all real numbers

Answer

Explanation:

Step1: Recall domain concept

The domain of a function is the set of all possible input - values.

Step2: Analyze cosine function

The cosine function $y = \cos(x)$ can take any real - valued input for $x$. There are no restrictions such as division by zero or taking the square root of a negative number for the cosine function.

Answer:

the set of all real numbers