Learn how to distribute a trigonometric function and then simplify the expression

The video tutorial explains how to simplify mathematical expressions by applying operations and using identities. It emphasizes the importance of converting expressions to sines and cosines when stuck. The tutorial also discusses the challenges of combining different expressions and the necessity of having a common denominator for simplification.

What do you need to do to combine two fractions with different denominators?

What is the result of sine squared of X plus cosine squared of X?