a1=2 a2=-1/2+1=1/2 a3=-1/(1/2)+1=-1 a4=-1/(-1)+1=2 a5=1/2 a6=-1,an是一个以3为周期的周期数列,因此a2010=a2007=.=a3=-1.
急!.数列{an}满足a1=2,an+1=-1/an+1,则a2010=?
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