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找规律361224
更新时间: 2020-07-06 00:00:00  

3、6、12、24为等比数列。

先观察:3乘以2等于6、6乘以2等于12、12乘以2等于24;

找规律:前一个数乘以二等于下一个数;

得结论:由此知这组数是以3为首项、2为公比的等比数列。

关键词: 规律

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