Sum the series up to n terms(DIFFERENCE SERIES)

[From: ] [author: ] [Date: 11-05-06] [Hit: ]

Sum the series:
sin θ sin 2θ sin 3θ + sin 2θ sin 3θ sin4 θ + sin 3θ sin 4θ sin 5θ + ... to n terms

sigma (from n = 1 to n) = sin (n) * sin (n+1) * sin (n+2)

keywords: up,DIFFERENCE,SERIES,Sum,terms,to,the,series,Sum the series up to n terms(DIFFERENCE SERIES)