Which is correct?

Question

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

0

π/6

-5π/3

-π

-3π/2

Answer 1

tangent of an angle is opposite side divided by adjacent side

the only angles not in the domain are those that make tangents undefined, such as pi/2, 3pi/2. + npi where n = any integer.

every other angle is in the domain

-3pi/2 is not in the domain. It is the same as pi/2 on a unit circle. pi/2 + npi where n=-2 = pi/2- 4pi/2= -3pi/2