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7.2 Compound Angle Formulas
Textbook
Advanced Functions Nelson
Chapter
Chapter 7
Section
7.2
Solutions
50 Videos
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Q1
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Q19
Lecture with Examples
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1 A First example of Compounded Angle Formula with Cosine
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2 Evaluating Cos 75 in Exact Values
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3 Evaluating Cos 15 in Exact Values
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4 Simplifying Trig Expression using Sine Formula
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5 Simplifying Trig Expression using Cosine Formula
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6 Proving Cosine Cofunctional Identities with Compounded Angle Formulas
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7 Proving Identities with Tangent Compounded Angle Formula
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8 Identity of Differential Quotient using Sine Compounded Angle Formulas
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9 Find sinA+B from given ratios ex1
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10 Find sinA+B from given ratios ex2
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11 Finding the location of 2x angle given single x
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12 Finding double of x ratios given single x ratios
Proofs of Compounded Angle Formulas
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1 Introduction to Compounded Angle Fomula of Trig Ratios
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2 Proof of Compounded Angle Formula using Unit Circle for Cosine Ratio
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3 Proof of Sine Compounded Angle Formula using the Cosine Formula
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4 Proof of Tangent Compounded Angle Formulas