問題:
A sequence -1/2,1/5,-1/10,1/17... is given.
Find an algebraic expression to represent the n th term of the sequence.
列式and解釋 plz
收錄日期: 2021-04-23 23:22:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091105000051KK01614