find the general terms of the following sequence
1) 1, -1, 1, -1, 1, ...
2) -3, -1, 1, 3, 5, ...
3) 1/4, 1/2, 1, 2, 4, ...
hence find the general term and the 10th term of the following squence
1) -3/4, 1/2, 1, -6, 20, ...
F1 sequence 求nth term
2010-01-04 6:55 am
回答 (1)
2010-01-04 8:02 am
✔ 最佳答案
1) (-1)^(n+1)2) -3+2(n-1)
3) 2^n /8=2^(n-3)
收錄日期: 2021-04-13 17:02:53
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https://hk.answers.yahoo.com/question/index?qid=20100103000051KK02162