[問題] 證明題 紊流公式
作業 不會寫QQ
http://i.imgur.com/tv9fGnO.jpg
網路上只有一步到位的神積分
2*(n^2/((n+1)(2n-1)))
--
Sent from my Android
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 120.101.35.43
※ 文章網址: https://www.ptt.cc/bbs/SENIORHIGH/M.1443595055.A.611.html
※ 編輯: arscerate (120.101.35.43), 09/30/2015 14:39:11
→
09/30 14:58, , 1F
09/30 14:58, 1F
→
09/30 15:00, , 2F
09/30 15:00, 2F
不能嗎?QQ...
推
09/30 15:07, , 3F
09/30 15:07, 3F
※ 編輯: arscerate (120.101.35.43), 09/30/2015 15:43:57
※ 編輯: arscerate (120.101.35.43), 09/30/2015 16:59:51
推
09/30 17:46, , 4F
09/30 17:46, 4F
推
09/30 22:18, , 5F
09/30 22:18, 5F
推
09/30 22:25, , 6F
09/30 22:25, 6F
嗚嗚我代了 可y=r/R 剩下
S[0,1] (1-y)^(1/7)y dy 要怎麼解
次方是分數怎麼積分
是7/8(1-y)^(8/7)嗎?
※ 編輯: arscerate (120.101.35.43), 09/30/2015 22:44:38
※ 編輯: arscerate (120.101.35.43), 09/30/2015 22:48:56
→ arscerate: 感謝rex0707大大
http://i.imgur.com/7yUENEA.jpg
10/01 00:39
※ 編輯: arscerate (120.101.35.43), 10/01/2015 00:39:47
推
04/08 00:11, , 7F
04/08 00:11, 7F
→
04/08 00:13, , 8F
04/08 00:13, 8F