11 formulas Flashcards by Anthony Mirabella | Brainscape

Q

cos2x

A

2cos^2 X - 1

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Q

cos2x

A

1 - 2sin^2X

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Q

sin2x

A

2sinxcosx

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Q

tan(x+y)

A

1-tanxtany

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Q

tan(x-y)

A

1+ tanxtany

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Q

tan2x

A

1-tan^2. X

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Q

cos2x

A

cos^2 X - sin^2 X

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