4-1=3 13-4=9 40-13=27 81-27=54 你看看有啥規(guī)律
或許最大的規(guī)律就是他永遠(yuǎn)也沒(méi)個(gè)規(guī)律.
1,4,13,40,81,121 這叫什么規(guī)律?
1,4,13,40,81,121 這叫什么規(guī)律?
數(shù)學(xué)人氣:129 ℃時(shí)間:2020-04-09 23:10:41
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