find or estimate the limit of the sequence

來源: 於 2011-01-22 06:26:48 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

a1=.25, a2=(.5+a1)^2, a3=(.5+a2)^2,...,an+1=(.5+an)^2.

(If you think it does not have a limit, then prove it)