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最后这个 无限迭代下去的积分怎么求呢? 将积分记为$s$,则$s=\int_{1-s}^{11+s}\frac1{11}\mathrm dx=\frac{1}{11} (2 s+\color{red}{12})\implies s=\frac43$ hbghlyj 发表于 2022-4-17 15:17
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2025-7-15 14:43 GMT+8
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