I think you are too careless and put 2 instead of 1/2....the ans

回答: find or estimate the limit of the sequenceyma162011-01-22 06:26:48

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the answer=(1+3^.5)/2 -jinjing- 给 jinjing 发送悄悄话 (0 bytes) () 01/22/2011 postreply 11:57:34

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