How to evaluate the difference of two angles for cosine function

The video tutorial explains the use of the cosine difference formula, focusing on evaluating trigonometric functions for specific angles. It covers the understanding of coordinate points on the unit circle and the process of simplifying trigonometric expressions. The tutorial emphasizes the importance of simplification for achieving full credit in exams.

What new insight or understanding did you gain from this video?

Evaluate responses using AI:

OFF