设是x的连续可导函数,且

设<img src='https://img2.soutiyun.com/ask/2021-01-26/980527003501687.png' />是x的连续可导函数,且<img src='https://img2.soutiyun.com/ask/2021-01-26/98052701142014.png' /> <img src='https://img2.soutiyun.com/ask/2021-01-26/980527018376538.png' />

时间:2023-02-14 15:54:26

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