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2.101
= 2.101 101 101 101 101......
I'm not sure how to construct the geometric series/summation to find the answer.
收錄日期: 2021-04-24 10:55:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091116224815AASgL3v