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sin(A+-B)
sinAcosB+-cosAsinB
cos(A+-B)
cosAcosB-+sinAsinB
tan(A+-B)
sin(A+-B)/cos(A+-B)
cot(A+-B)
cos(A+-B)/sin(A+-B)
sin(2x)
2(sinx)(cosx)
cos(2x)
cos²x-sin²x
tan(2x)
2tanx/1-tan²x
Note 
Flashcard (41)