Evaluating Inverse Trigonometric Functions

The video tutorial explains the problem of evaluating the inverse cosine of 2. It highlights that the cosine function's range is between 0 and π, and its domain is between -1 and 1. Since 2 is outside this domain, the inverse cosine of 2 is undefined. The tutorial emphasizes understanding the domain and range when dealing with inverse trigonometric functions.

How does the graph of the cosine function relate to its domain?

Why is the inverse cosine of two considered undefined?