计算:1-1/3-1/9-1/27-1/81-1/243-1/729

学习 时间:2026-04-03 09:38:33 阅读:372
计算:1-1/3-1/9-1/27-1/81-1/243-1/729

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无聊的大侠

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2026-04-03 09:38:33

1-1/3-1/9-1/27-1/81-1/243-1/729=1-(1/3+1/9+1/27+1/81+1/243+1/729)=1-(1/3-1/729x1/3)/(1-1/3)=1-1/2x728/729=365/729

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  • 难过的鸡翅
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    2026-04-03 09:38:33

    1-1/3-1/9-1/27-1/81-1/243-1/729=1-(1/3+1/9+1/27+1/81+1/243+1/729)=1-(1/3-1/729x1/3)/(1-1/3)=1-1/2x728/729=365/729

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