Double Angle Identities Flashcards by KJ Smith | Brainscape

Q

Cos 2Ø =

A

Cos^2Ø-Sin^2Ø, 1-2 Sin^2Ø, 2cos^2Ø-1

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Q

Sin2Ø =

A

2sinØ•cosØ

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Q

Tan2Ø =

A

2tanØ/1-tan^2Ø

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