已知一數列的通頂Tn=4n，該數列的第幾頂是64?
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maths. problem
2007-09-06 6:17 am
回答 (1)
2007-09-06 6:22 am
✔ 最佳答案
It is given that the general term of the sequence is 4n.So, Tn = 4n
for 64 is in the sequence,
4n = 64
n = 64 / 4 = 16
So, the 16th term is 64.
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