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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 
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觀察數字的規律後 回答問題 增10點
Jul 5th 2014, 15:18

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第一層：1＋1＝2＝2^1 第二層：1＋2＋1＝4＝2^2 第三層：1＋3＋3＋1＝8＝2^3 第四層：1＋4＋6＋4＋1＝16＝2^4 ⋯⋯ 所以，第九層的數字和是 2^9，即 512。...
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