請問 51!-50!/50!-49!
要怎麼解呢? 麻煩幫我列出算法不要徒法煉鋼 謝謝~
數學 階乘問題!
2011-09-09 7:58 am
回答 (3)
2011-09-09 8:12 am
2011-09-09 6:12 pm
(1) 標準算法
51!-50!/50!-49!
= 51! -1 - 49! = (51．50-1)．49!-1
(2) 加減乘除由左而右算法
51!-50!/50!-49!
= (51-1)50!/50!-49!
= 50 - 49!
51!-50!/50!-49!
= 51! -1 - 49! = (51．50-1)．49!-1
(2) 加減乘除由左而右算法
51!-50!/50!-49!
= (51-1)50!/50!-49!
= 50 - 49!
2011-09-09 8:06 am
請問 (51!－50!)/(50!－49!)
Sol
(51!－50!)/(50!－49!)
=(51*50*49!－50*49!)/(50*49!－49!)
=(51*50－50)/(50－1)
=2500/49
Sol
(51!－50!)/(50!－49!)
=(51*50*49!－50*49!)/(50*49!－49!)
=(51*50－50)/(50－1)
=2500/49
收錄日期: 2021-04-30 16:02:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110908000016KK08438