# Double Angle Identities

## Simplifying trigonometric functions with twice a given angle.

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## Double Angle Identities

Derivation of double angle identities for sine, cosine, and tangent
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## Double, Half, and Power Reducing Identities

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## Double, Half, and Power Reducing Identities

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## Double Angle Formulas

by EPISD Precalculus Team //at grade
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• PLIX

## Double Angle Identities: Ferris Wheel

Double Angle Identities Interactive
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• Video