Adding two rational trigonometric terms learn how

The video tutorial explains how to add fractions by finding a common denominator and applies this concept to trigonometric expressions. It demonstrates the process of simplifying trigonometric expressions using algebraic techniques and trigonometric identities, ultimately arriving at a simplified expression. The tutorial emphasizes understanding through relatable examples and encourages checking work for accuracy.

What is the significance of the Pythagorean identity mentioned in the text?

How does the final expression simplify to 2 secant of X?