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Home  /  Precalculus with Limits, HS Edition (5e)  /  Chapter 5 · Analytic Trigonometry
Section 5.4

Sum and Difference Formulas

Sum and difference identities for sine, cosine, and tangent; applications to evaluating exact values.

4 lessons. Pick what you need.

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Chapter 5 · Analytic Trigonometry
5.1 5.2 5.3 5.4 5.5a 5.5b
Lesson

Lesson on Proofs of Cos(A-B) and Cos(A+B)

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Lesson

Lesson of Exercises Using the Sum and Difference of Cosine Identities

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Lesson

Lesson on the Sum and Difference Identities for Sine and Tangent

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Examples

Examples Finding the Sine of a Sum and Tangent of a Sum

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