Double Angle Flashcards by Drizzie Sawyer | Brainscape

Q

sin2x = 2sincos

A

sin2x

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Q

cos2x = cos^2 - sin^2

A

cos2x (1st)

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Q

cos2x = 1 - 2sin^2

A

cos2x (2nd)

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Q

cos2x = 2cos^2 - 1

A

cos2x (3rd)

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Q

tan2x = 2tan / 1 - tan^2

A

tan2x

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