证明上可导,且。进一步证明

证明<img src='https://img2.soutiyun.com/ask/2021-02-02/98110890506781.png' />上可导,且<img src='https://img2.soutiyun.com/ask/2021-02-02/981108913063267.png' />。进一步证明<img src='https://img2.soutiyun.com/ask/2021-02-02/981108920585697.png' />

时间:2023-02-14 13:25:24

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