Evaluating Inverse Trigonometric Functions

The video tutorial explains how to evaluate the inverse cosine of -1. It begins by clarifying the problem and using function notation to express the cosine of theta as -1. The tutorial discusses the importance of considering the range and graph restrictions, focusing on the unit circle and x-coordinates. It then determines that the angle where the cosine equals -1 is pi, which falls within the specified range. The tutorial concludes by summarizing the evaluation process for the inverse cosine function.

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