In the interval

MATHEMATICS · Single correct · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

In the interval

0\le x<2\pi

, at which of the following values is

\csc x

undefined? (a)

\dfrac{\pi}{2}

(b)

\pi

(c)

2\pi

(d)

\dfrac{5\pi}{4}