If n is an integer, n ∙ 180° represents an integer multiple of 180°, and (2n + 1) ∙ 90° represents an odd integer multiple of
90°. Decide whether the expression is equal to 0, 1, -1, or is undefined.
-$\tan \left( \mathrm { n } \cdot 180 ^ { \circ } \right)$

Question

Quizplus · Accepted Answer

The tangent of any integer multiple of 180° is 0, because tan(180°n) = tan(nπ) = 0 for any integer n, as the tangent function has a period of π and tan(π) = 0.

If N Is an Integer, N ∙ 180° Represents an Integer