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 is the first step recommended for simplifying expressions?

• Apply the distributive property

• Use Pythagorean identities

• Convert to tangent and cotangent

• Cross-multiply terms

When stuck, what is a useful strategy for simplifying trigonometric expressions?

• Cross-multiply terms

• Use Pythagorean identities

• Convert everything to sines and cosines

• Convert everything to tangent and cotangent

How is tangent expressed in terms of sine and cosine?

• Cosine times sine

• Sine times cosine

• Sine over cosine

• Cosine over sine

What must be done to add two trigonometric expressions?

• Ensure they have the same numerator

• Ensure they have the same denominator

• Convert them to tangent and cotangent

• Use Pythagorean identities

What is the result of sine squared plus cosine squared?

• Cosine

• Sine

• One

• Zero