Evaluate the six trigonometric functions for the given real number

The video tutorial explains how to evaluate angles using trigonometric functions, focusing on the unit circle. It covers sine and cosine as coordinates, reciprocal functions like cosecant, secant, and cotangent, and techniques for simplifying expressions. The importance of practice and rationalizing denominators is emphasized to improve speed and accuracy in solving trigonometric problems.

Describe the process of rationalizing the denominator when dealing with trigonometric functions.

Why is it important to practice simplifying fractions in trigonometric calculations?