How do the constraints tell us which quadrant our angle should lie in

The video tutorial explains how to find angles on the unit circle where cosine equals sqrt(2)/2, emphasizing the importance of considering constraints. It covers identifying quadrants where cosine is positive and tangent is negative, and provides examples to illustrate these concepts.

What are the two points on the unit circle where cosine of Theta equals sqrt(2)/2?

Explain the importance of providing both answers when cosine equals sqrt(2)/2.

When given a constraint, how do you determine which quadrants to consider for cosine values?

Describe how to find the angle when cosine of Theta is greater than zero.

What is the relationship between tangent being less than zero and the quadrants involved?