Statistics Help!!?
回答 (2)
2016-03-14 2:06 am
n! = n * (n-1) * (n-2) * ... * 2 * 1
(n-1)! = (n-1) * (n-2) * ... * 2 * 1
...
n! = n * (n-1)!
(n-1)! = (n-1) * (n-2) * ... * 2 * 1
...
n! = n * (n-1)!
2016-03-14 2:14 am
n! = n * (n - 1)!
收錄日期: 2021-05-01 16:40:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160313180555AAAPMuJ