請詳細步驟教我計以下二條 :
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急 F6 Geometric Sequences 02q12
2013-04-06 1:31 am
回答 (1)
2013-04-06 2:11 am
✔ 最佳答案
19a) Yes, it is.The common difference is 1.5b) Yes, it is . The common difference is 1.5
c) Yes, it is. The common difference is 0.5
d)
20a) S(1) = 3(1)^(2) +2(1)
= 5
b) Common difference = S(2) - T(1)
= 3(2)^(2) + 2(2) - 5
= 11
T(6) = 5+ 11(5) = 60
收錄日期: 2021-04-13 19:24:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130405000051KK00280