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Concept of finding no of arrangements in necklace and garland cases

Asked by 12th September 2009, 8:16 PM
Answered by Expert
Answer:

these are the cases of circular permutations

There are two cases of circular-permutations:-

(a)       If clockwise and anti clock-wise orders are different, then total number of circular-permutations is given by (n-1)!

(b)       If clock-wise and anti-clock-wise orders are taken as not different, then total number of circular-permutations is given by  (n-1)!/2!

In case of beads  clock-wise and anti-clockwise arrangement s are same.

Answered by Expert 5th October 2009, 12:21 PM
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