Use reference angles to find the exact value of the expression. Do not use a calculator.
-$$\tan \frac { - \pi } { 2 }$$
A) $- 1$
B) 1
C) 0
D) undefined

Question

Quizplus · Accepted Answer

The tangent of $-\frac{\pi}{2}$ is undefined because at this angle, the cosine function (the denominator in the tangent function, which is sine over cosine) is 0, and division by zero is undefined.

Use Reference Angles to Find the Exact Value of the Expression