Steps to evaluate the inverse trig functions as composition

The video tutorial covers the evaluation of function compositions, focusing on cosine and sine functions. It explains the concept of reference angles and their significance in different quadrants. The tutorial also delves into the constraints of inverse trigonometric functions, emphasizing the importance of understanding which angles fall within these constraints. Additionally, it discusses the infinite solutions possible in trigonometry and the necessity of restrictions to define functions properly.

Discuss the concept of infinite solutions in trigonometric functions and how it relates to the definition of a function.

What are the restrictions on angles when using inverse trigonometric functions, and why do they exist?