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[函数] 一道精度较高的导数不等式证明（征解）

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等待hxh posted 2021-5-31 21:24 |Read mode

这题尝试了一些方法，但没搞定！

这是原题

这是原题

加强到这

加强到这

几何画板作图

几何画板作图

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original poster 等待hxh posted 2021-5-31 21:25

没能想到简便方法，泰勒展开到了4阶，在此征解！

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original poster 等待hxh posted 2021-6-1 18:50

麻烦高手看看

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2025-7-15 15:10 GMT+8

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