Double Angle Formulas Flashcards by sarah Charlton | Brainscape

Q

Cos2X

A

Cos^2x - sin^2x, 2cos^2x - 1, 1 - 2sin^2x

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Q

Sin2X

A

2 sinXcosX

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Q

Tan2x

A

2tanX / 1 - tan^2x

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