a=(1/2)*(3/4)*(5/6)......*(99/100)
Why
(2/3)*(4/5)*(6/7).....*(100/101)=(1/a)*(1/101)?
我跟吾到個step.
收錄日期: 2021-04-13 13:56:45
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070827000051KK01323