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Home  /  College Algebra and Trigonometry (7e)  /  Chapter 7 · Trigonometric Identities and Equations
Section 7.4a

Double-Angle Identities

Double-angle identities for sine, cosine, and tangent; product-to-sum identities.

2 lessons. Pick what you need.

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Chapter 7 · Trigonometric Identities and Equations
7.1 7.2 7.3 7.4a 7.4b 7.5 7.6 7.7
Lesson

Lesson on Double-Angle Identities

Guided Notes Guided Notes (Word Version)
Lesson

Lesson on Sum to Product (and Product to Sum) Identities

Guided Notes Guided Notes (Word Version)