What are the six trig function values of (7pi)/6?

1 Answer
Nov 14, 2015

Trig Table of Special Arcs and unit circle -->
sin (7pi)/6 = sin (pi/6 + pi) = - sin pi/6 = - 1/2
cos (7pi)/6 = cos (pi/6 + pi) = - cos pi/6 = -sqrt3/2
tan pi/6 = sin/(cos) = 1/sqrt3 = sqrt3/3
cot = 1/(tan) = sqrt3
sec = 1/(cos) = -2/sqrt3 = - 2sqrt3/3
csc = 1/(sin) = -2