How to multiply two binomials with trigonometric functions to simplify an expression

The video tutorial explores the application of the FOIL method in mathematical expressions, focusing on combining terms and using Pythagorean identities to simplify expressions. The instructor demonstrates how to break down complex expressions into simpler forms, emphasizing the importance of practice and persistence in problem-solving.

Explain how to express sine squared of X over cosine of X.

What is the relationship between tangent of X and sine of X?