Does the serias has a limit?

来源: 于 2008-04-26 08:29:08 [旧帖] [给我悄悄话] 本文已被阅读：次
Let a1=2^.5, a2=(2+a1)^.5...
Does a1+(2-a1)^.5+(2-a2)^.5+... has a limit?