Sum and Difference Identites Flashcards

1
Q

cos(A+B)=

A

cosAcosB-sinAsinB

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2
Q

sin(A+B)=

A

sinAcosB+cosAsinB

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3
Q

tan(A+B)=

A

tanA+tanB/1-tanAtanB

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4
Q

cos(A-B)=

A

cosAcosB+sinAsinB

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5
Q

sin(A-B)=

A

sinAcosB-cosAsinB

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6
Q

tan(A-B)=

A

tanA-tanB/1+tanAtanB

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