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Problem Which one of the following is equal to sin ( α − β ) \sin(\alpha-\beta) sin ( α − β ) α \alpha α β \beta β cos α sin β − sin α cos β \cos\alpha\sin\beta-\sin\alpha\cos\beta cos α sin β − sin α cos β sin α cos β − cos α sin β \sin\alpha\cos\beta-\cos\alpha\sin\beta sin α cos β − cos α sin β cos α cos β − sin α sin β \cos\alpha\cos\beta-\sin\alpha\sin\beta cos α cos β − sin α sin β sin α cos β + cos α sin β \sin\alpha\cos\beta+\cos\alpha\sin\beta sin α cos β + cos α sin β Browse the problem library