All C3 Flashcards by Olivia Rose-grey

Q

sin2A

A

2sinAcosB

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Q

cos2A

A

cos^2A - sin^2A
2cos^2A - 1
1 - 2sin^2A

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Q

tan2A

A

(2tanA) / (1 - tan^2A)

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Q

2sinAcosB

A

sin(A+B) + sin(A-B)

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Q

2cosAcosB

A

cos(A+B) + cos(A-B)

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Q

2sinAsinB

A

-(cos(A+B) - cos(A-B))

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