设f(x)在[a,b]上连续,在(a,b)内可导且f'(x)≤0,证明在(a,b)内有F'(x)<0.

设f(x)在[a,b]上连续,在(a,b)内可导且f'(x)≤0, <img src='https://img2.soutiyun.com/ask/2020-12-04/975925572077622.png' /> 证明在(a,b)内有F'(x)<0.

时间:2024-04-08 09:53:38

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