Whats the answer for this

Question

Which of the following is not in the domain of cot(x)? Select all correct answers.

Select all that apply:

−3π/2

−π

0

π/2

2π

5π/2

Answer 1

graph of cot(x) has discontinuities at

x = 0, -pi, 2pi, or n(pi) where n= any integer

those values of x are not in the domain as they make cot(x) undefined

cot(x) is the adjacent side divided by the opposite side

the opposite side =0 when x =npi where n= any integer

n=0, x= 0(pi) = 0

n=-1, x =-1(pi) =-pi

n= 2, x = 2pi

all the other choices -3pi/2, -pi/2, 5pi/2, are in the domain of cot(x), but not in the domain of tan(x)