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[不等式] 由实用算术的开方法引出的问题

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hbghlyj posted 2019-8-2 20:38 |Read mode
Last edited by hbghlyj 2019-8-2 21:42$s,r$∈N,$s≤10^k-1$,100$s^2+r≤10^{2k+2}-1$,$s'=[\sqrt{100s^2+r}]-10s$,证明:s'≤9

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$\LaTeX$ formula tutorial

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