Answer asap 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.

It is known
  and 
  (if you want to determine cosine of 30° you should draw the perpendicular line to the x-axis and find the point of intersection, the value of x-coordinate is the cosine of 30°).

The angle and
(see image).
The angle and

(see image).

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