# Simplify Trig Expression: Quotient with Sines and Cosines and Double Angle

This video explains how to simplify or change for form of a trigonometric expression to select and equivalent expression or determine a trigonometric identity.

# Simplify Trig Expression (cos x)^4-(sin x)^4

This video explains how to simplify or change for form of a trigonometric expression to select and equivalent expression or determine a trigonometric identity.

# Simplify Trig Expression (1-cos(2x))/sin(x) – Find an Identity

This video explains how to simplify or change for form of a trigonometric expression to select and equivalent expression or determine a trigonometric identity.

# Trig Identities: Find an Identity for (2cos(2x))/(sin(2x)) (Double Angle)

This video explains how to simplify or change for form of a trigonometric expression to select and equivalent expression or determine a trigonometric identity.

# Determine Equivalent Equations Given x = a (4 Operations) Ex 2

This video explains how to determine equivalent equations gives x = a and several operations.

# Determine Equivalent Equations Given x = a (4 Operations) Ex 1

This video explains how to determine equivalent equations gives x = a and several operations.

# Determine Equivalent Equations Given x = a (3 Operations) Ex 2

This video explains how to determine equivalent equations gives x = a and several operations.