1,3,5,7,9既數字組合

2009-02-05 2:58 am
我想知道1,3,5,7,9有幾多個數字組合,要交叉組合。

回答 (2)

2009-02-05 9:42 pm
✔ 最佳答案
6!=720
總共有720個組合, 我點列哂俾你?

2009-02-05 13:45:24 補充:
sor... 5!=120
2009-02-05 3:10 am
個位:5個
兩個位:20個
三個位:60個

2009-02-05 00:10:31 補充:
個位;1,3,5,7,9
兩個位:13,15,17,19,35,37,39,57,59,79,31,51,71,91,53,73,93,75,95,97

2009-02-05 00:11:24 補充:
三個位:135,137,139,157,159,179,153,173,193,175,195,197,315,317,319,351,357,359,379,375,371,391,395,397,579,571,573,591,593,597,513,517,519,531,537,539,713,715,719,731,735,739,791,793,795,751,753,759,913,915,917,931,935,937,951,953,957,971,973,975

2009-02-05 18:08:10 補充:
太多組合喇!幫不上了!
參考: 吾, 辛苦,請笑納 已盡力~, 辛苦,請笑納 已盡力~


收錄日期: 2021-04-13 16:24:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090204000051KK01820

檢視 Wayback Machine 備份