设函数<img src=https://huaweicloudobs.ahjxjy.cn/73CA8AD9DB48E63C4A5827998A73084D.png title=(_Q71M6GS`)WUA[6}LYLRV0.png alt=(_Q71M6GS`)WUA[6}LYLRV0.png/>处可导,则它在<img src=https://huaweicloudobs.ahjxjy.cn/969AD1929844953C8EE3A11177AF30B7.png title=0S184[DY{]HA}1F0@(9)Z`J.png alt=0S184[DY{]HA}1F0@(9)Z`J.png/>的微分<img src=https://huaweicloudobs.ahjxjy.cn/F741D7BC128922C170DDFEEB63F7B475.png title=HC@97B9C6AGZ]ING9W}PO7Q.png alt=HC@97B9C6AGZ]ING9W}PO7Q.png/>指的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/21BD989AA5AE0D7D370226BBF4F86CC9.png title=@O9FPRTJWGZ]QM3ZY%TBFA3.png alt=@O9FPRTJWGZ]QM3ZY%TBFA3.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/65FA7E556C01676B0413FAA4C25B8596.png title=`KBX56ZYLY~Z$D3A4ZRT%62.png alt=`KBX56ZYLY~Z$D3A4ZRT%62.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B53E25AC39B7F9C810FE410F50F50A67.png title=E]B(XMT8MJIJY2`98Y_K[7J.png alt=E]B(XMT8MJIJY2`98Y_K[7J.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/F741D7BC128922C170DDFEEB63F7B475.png title=HC@97B9C6AGZ]ING9W}PO7Q.png alt=HC@97B9C6AGZ]ING9W}PO7Q.png/>