若函数<img src=https://huaweicloudobs.ahjxjy.cn/802261A0E3012567266ED452BD0DD297.png title=)}IL}@47QTNNS[C[9()`%RO.png alt=)}IL}@47QTNNS[C[9()`%RO.png/>处微分<img src=https://huaweicloudobs.ahjxjy.cn/A13BEF84A0026EA5EA0E993B9EDA6F95.png title=P46KS@TPM(KBG275JO}%EML.png alt=P46KS@TPM(KBG275JO}%EML.png/>是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/01503A0FA1F5CC67D815039B5A95225A.png title=F3N8WE08L3K@%P0@}D}3JCB.png alt=F3N8WE08L3K@%P0@}D}3JCB.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/74DAF3C6F21FABD8B416C40E56A621D4.png title=]E2%KPB[SEERZ)3$_C3}167.png alt=]E2%KPB[SEERZ)3$_C3}167.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/5360AF12399DB3D4F1B6A2FF1564DDC9.png title=R3(W43634D9]YKNDPT)ZW5N.png alt=R3(W43634D9]YKNDPT)ZW5N.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/8CEA2B9B864516E18734982C1C0E8972.png title=$BOB_$434%56A7XRVXUD`D5.png alt=$BOB_$434%56A7XRVXUD`D5.png/>