UC知道找规律`!急需啦~!
来源：百度知道 编辑：UC知道 时间：2024/09/24 04:29:27
1.按规律填数.
(1)2,3,5,8,13,21,()
(2)1,4,9,16,()
(3)6,3,8,5,10,7,12,9,(),()
(4)1,3,9,27,81,()
第2题是:1,4,9,16,(),()
(1)2,3,5,8,13,21,()
(2)1,4,9,16,()
(3)6,3,8,5,10,7,12,9,(),()
(4)1,3,9,27,81,()
第2题是:1,4,9,16,(),()
(1)An=2+n^2-1,所以2,3,5,8,13,21,(24)
(2)An=n^2，所以1,4,9,16,(25),(36)
(3)奇数列：An=2*(n+2)(n=2k+1);偶数列：An=2n+1，所以6,3,8,5,10,7,12,9,(14),(11)
(4)An=3^(n-1)次方，所以1,3,9,27,81,(243)
(1)2,3,5,8,13,21,(24)
<br>(2)1,4,9,16,(25)(36)
<br>(3)6,3,8,5,10,7,12,9,(14),(11)
<br>(4)1,3,9,27,81,(243)