Sum and Difference Flashcards by Aleks Dohoda

Q

sin(a+b)= x

A

sinacosb+cosasinb

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Q

sin(a-b) = x

A

sinacosb-cosasinb

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Q

cos(a+b)=x

A

cosacosb-sinasinb

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Q

cos(a-b)=x

A

cosacosb+sinasinb

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Q

tan(a+b)=x

A

(tana+tanb)/1-tanatanb

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Q

tan(a+b)=x

A

(tana-tanb)/1+tanatanb

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