Identities 4.2 Flashcards by Andy Lau | Brainscape

Q

cos(A+B)

A

cosAcosB - sinAsinB

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Q

cos(A-B)

A

cosAcosB + sinAsinB

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Q

sin(A+B)

A

sinAcosB + cosAsinB

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Q

sin(A-B)

A

sinAcosB - cosAsinB

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Q

tan(A+B)

A

1 - tanAtanB

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Q

tan(A-B)

A

1 + tanAtanB

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