a.maths mathematical induction

2007-08-27 11:20 pm
1. Let Tn = ( n^2 + 1 )( n ! ) for any positive integer n.
  Prove, by mathematical induction, that
    T1+T2 + ... + Tn =n [ (n + 1) ! ]
  for all positive integer n .
(HKCEE 1997)
2. Prove, by mathematical induction, that
    1 x 2 + 2 x 3 + 2^2 x 4 + ... 2^n-1 x ( n + 1 ) = 2^n (n)
  for all positive integer n .
(HKCEE 1998)

回答 (1)

2007-08-27 11:51 pm
參考: My Maths knowledge


收錄日期: 2021-04-25 14:04:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070827000051KK02853

檢視 Wayback Machine 備份