chapter 11.3 - addition formulae Flashcards by Thomas Khoo | Brainscape

Q

what is the addition formula for cosine

A

cos (A±B) = cos A cos B -+ sin A sin B

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Q

what is the addition formula for sine

A

sin (A±B) = sin A cos B ± cos A sin B

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Q

what is the addition formula for tangent ?

A

tan (A±B) = tan A ± tan B / 1-+ tan A tan B

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