Question

Use complete sentences to explain the relationship between cos(7pi/6) and cos (5pi/6). In your answer, reference specific values on the unit circle to prove the relationship between the angles.
PLZ HELP&answer fast

Answer 1

The relationship is that cos 7pi/6 and cos 5pi/6 both are cosines of angles that have a reference angle of pi/6. cos 7pi/6 = cos 5pi/6 = -√3/2