why r/3/n=r/(3n)? anyone give
回答 (2)
2009-05-28 11:06 pm
∵ r/3/n
= r/3 ÷ n
=r/3 ÷ n/1
=r/3 × 1/n
=r/3n
∴r/3/n = r/3n
= r/3 ÷ n
=r/3 ÷ n/1
=r/3 × 1/n
=r/3n
∴r/3/n = r/3n
2009-05-17 11:04 pm
(r/3)/n
=(r/3)/(n/1)
=(r/3)*(1/n)
=r/(3n)
=(r/3)/(n/1)
=(r/3)*(1/n)
=r/(3n)
收錄日期: 2021-04-22 00:38:59
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090517000051KK00416