更新1:
5,11,17,23(A.P.) find the general term T(n),係唔係T(n)=5+(n-1)(6) or T(n)=6n-1 兩種寫法都ok?
5,11,17,23(A.P.) find the general term T(n),係唔係T(n)=5=(n-1)(6) or T(n)=6n-1 兩種寫法都ok?
回答 (1)
2015-12-27 3:39 am
✔ 最佳答案
RightT(n)=6n-1
T(1)=6(1)-1=6
T(2)=6(2)-1=11
T(3)=6(3)-1=17
...
Wrong
T(n)=n-1
T(1)=1-1=0 (wrong)
T(2)=2-1=1 (wrong)
T(3)=3-1=2 (wrong)
...
收錄日期: 2021-04-18 14:12:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20151226012954AAm1dTM