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3.2: Proofs of Trigonometric Identities

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

FOIL

FOIL

FOIL is an acronym used to remember a technique for multiplying two binomials. You multiply the FIRST terms, OUTSIDE terms, INSIDE terms, and LAST terms and then combine any like terms.
Trigonometric Identity

Trigonometric Identity

A trigonometric identity is an equation that relates two or more trigonometric functions.

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Date Created:

Sep 26, 2012

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Nov 11, 2015
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