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Home  /  Precalculus: CTF (5e, Unit Circle)  /  Chapter 8 · Applications of Trigonometric Functions
Section 8.3

The Law of Cosines

Law of cosines for oblique triangles.

3 lessons. Pick what you need.

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Chapter 8 · Applications of Trigonometric Functions
8.1 8.2 8.3
Lesson

Lesson on the Law of Cosines

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Examples

Examples on the Law of Cosines with an SSS Triangle

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Lesson

Lesson on Heron's Formula for the Area of a Triangle

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