已知当<img src=https://huaweicloudobs.ahjxjy.cn/2F646ED52262DACEDBEA230EBF0FB8E4.png title=BUNU((2V4E1]D%C}WZ(RNVU.png alt=BUNU((2V4E1]D%C}WZ(RNVU.png/>时,<img src=https://huaweicloudobs.ahjxjy.cn/1CF1802A42A7ECE9D08E5576449F35CD.png title=@ZT~0N17J5(~V8J7J1AN8KY.png alt=@ZT~0N17J5(~V8J7J1AN8KY.png/>是无穷大量,则下列变量当<img src=https://huaweicloudobs.ahjxjy.cn/2F646ED52262DACEDBEA230EBF0FB8E4.png title=BUNU((2V4E1]D%C}WZ(RNVU.png alt=BUNU((2V4E1]D%C}WZ(RNVU.png style=white-space: normal;/>时是无穷小量的是
①
<img src=https://huaweicloudobs.ahjxjy.cn/6F4D3479C1996CCF34C0C062919826B5.png title=3V]BQ_G{RW71H`YA)@%6JVO.png alt=3V]BQ_G{RW71H`YA)@%6JVO.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4437192E2E1F37F9AF6360C157144B97.png title=4J`8Q7JJB_E{Z$H_T[I@I1B.png alt=4J`8Q7JJB_E{Z$H_T[I@I1B.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C478AA08F7570B2458FA50FC5BDAEB37.png title=Q0}5`}LMU`66DE}Y6FI02VA.png alt=Q0}5`}LMU`66DE}Y6FI02VA.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/284B5122BCD70C208ECD4C4C859BC089.png title=U2ZGC{U_6VJET%@4EK@EEJ2.png alt=U2ZGC{U_6VJET%@4EK@EEJ2.png/>