The sum of the first n terms of an arithmetic series is 5/4n^2+7/4n,
find the first term of the series
arithmetic series
2014-04-26 2:13 am
回答 (3)
2014-04-26 3:48 am
✔ 最佳答案
Thefirst term= Sum of the first one term
= (5/4)(1)² + (7/4)(1)
= (5/4) + (7/4)
= 12/4
= 3
參考: 土扁
2014-05-01 3:03 am
The first term
= Sum of the first one term
= (5/4) + (7/4)
= 12/4
= 3
2014-04-30 19:04:11 補充：
The first term
= Sum of the first one term
= (5/4)(1)² + (7/4)(1)
= (5/4) + (7/4)
= 3
= Sum of the first one term
= (5/4) + (7/4)
= 12/4
= 3
2014-04-30 19:04:11 補充：
The first term
= Sum of the first one term
= (5/4)(1)² + (7/4)(1)
= (5/4) + (7/4)
= 3
2014-04-26 2:42 am
5/4(1)^2+7/4(1)=3
收錄日期: 2021-04-13 21:18:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140425000051KK00136