The functions that actually have period pi are:
B. y = csc x
C. y = sec x
Let's understand what the period of a function is all about.
What is period of a function?
Period of a function is known to be the distance that exists between the repetition of any function. In trigonometry, the length of a complete cycle is known as a period.
So, we can see that the functions that actually have period pi are y = csc x and y = sec x.
Learn more about period on https://brainly.com/question/1978594
