It is given that the general term of a sequence is Tn=2(n/4 + 1/6). Determine whether the sequence is an arithmetic sequence.
can anyone help me
math question about A.S.
2011-09-19 1:45 am
回答 (1)
2011-09-19 1:53 am
✔ 最佳答案
T(n + 1) - T(n)= 2[(n + 1)/4 + 1/6] - 2(n/4 + 1/6)
= 2[(n/4 + 1/4 + 1/6 - n/4 - 1/6)
= 1/2 (constant)
So, the sequence is an arithmetic sequence
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