对于函数<img src="/lqwvjeImg/7f/7fdbcd505d638668023aa9943f71a1ae.png"style="width:36px;height:21px;">,下列说法正确的是( )<br>·若<img src="/lqwvjeImg/72/72cfecf4782ea07f72ac576ae30effa8.png" 为极值点,则<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1652909017965_bc4bd619ed704f3d929051e58c6bd89d.png" <br>·若<img src="/lqwvjeImg/12/120d29a9d6a9a63fd060f4b1778a5cd6.png" ,则<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/165286052154113195321b3bf4789b3148ace3f1558c8image28.png" 为极值点<br>·若<img src="/lqwvjeImg/72/72cfecf4782ea07f72ac576ae30effa8.png" 为极值点,则<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1652909064598_e9ae0453a1e1499d899d1cbebdd02235.png" <br>·若<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/165286052163973ab526799a040938578a1ad78cf0365image28.png" 为极值点且<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/16528605216717a5a5222e16441ecaf454aed82e55313image32.png" 存在,则<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1652909083813_44c4cb92ffad4bc7880eb8206f0c8d42.png"

对于函数

,下列说法正确的是( )
·若

·若

·若<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/165286052163973ab526799a040938578a1ad78cf0365image28.png" 为极值点且<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/16528605216717a5a5222e16441ecaf454aed82e55313image32.png" 存在,则<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1652909083813_44c4cb92ffad4bc7880eb8206f0c8d42.png"

出自：西南石油大学土木工程施工与组织(专升本)

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