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4.4 Compound Angle Formulas

Textbook

Advanced Functions McGraw-Hill

Chapter

Section

4.4

Solutions 53 Videos

Lecture with examples 12 Videos

A First example of Compounded Angle Formula with Cosine

Evaluating Cos 75 in Exact Values

Evaluating Cos 15 in Exact Values

Simplifying Trig Expression using Sine Formula

Simplifying Trig Expression using Cosine Formula

Proving Cosine Co-functional Identities with Compounded Angle Formulas

Proving Identities with Tangent Compounded Angle Formula

Identity of Differential Quotient using Sine Compounded Angle Formulas

Find sinA+B from given ratios ex1

Find sinA+B from given ratios ex2

Finding the location of 2x angle given single x

Finding double of x ratios given single x ratios

Proofs of Compounded Angle Fromulas 4 Videos

Introduction to Compounded Angle Formula of Trig Ratios

Proof of Compounded Angle Formula using Unit Circle for Cosine Ratio

Proof of Sine Compounded Angle Formula using the Cosine Formula

Proof of Tangent Compounded Angle Formulas