设函数f(x)在x=a的某个邻域内连续,且f(a)为极大值,则存在δ>0,当x∈(a一δ,a+δ)时,必有().A.

设函数f(x)在x=a的某个邻域内连续,且f(a)为极大值,则存在δ>0,当x∈(a一δ,a+δ)时,必有(). A.(x一a)[f(x)一f(a)]≥0 B.(x—a)[f(x)一f(a)]≤0 C.<img src='https://img2.soutiyun.com/ask/uploadfile/9072001-9075000/e38117087fa115f1.jpg' /> D.<img src='https://img2.soutiyun.com/ask/uploadfile/9072001-9075000/c2451eba6c37752.jpg' />

时间:2023-09-26 11:29:26

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