Evaluating the composition of inverse functions using triangles

The video tutorial explains how to evaluate the sine of the arccosine of a given value. It begins with an introduction to inverse cosine and the importance of constructing triangles for evaluation. The tutorial then discusses quadrant analysis to ensure the correct placement of triangles. The Pythagorean theorem is applied to find the missing side of the triangle. Finally, the sine of the angle is calculated, providing a comprehensive understanding of the process.

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