Double Angle Identities Flashcards by Caroline Bringhurst | Brainscape

Q

sin 2θ =

A

2 sinθ cosθ

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Q

tan 2θ =

A

2 tanθ / 1 - tan^2 θ

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Q

cos 2θ =

A

cos^2 θ -sin^2 θ

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