How to solve a trigonometric equation when it is already solved cos

The video tutorial explains how to solve for angle U in trigonometric equations by isolating the variable and using the unit circle. It covers identifying solutions for cosine values and discusses the concept of constraints and infinite solutions. The tutorial emphasizes the importance of understanding when to apply constraints and how to find all possible solutions by considering coterminal angles.

What does the teacher say about finding solutions if there is no constraint?

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How does the teacher explain the concept of coterminal angles?

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What should you do if there is a constraint on the solution angles?

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