【单选题】
以下结论或等式正确的是( ).
①
<img src=https://huaweicloudobs.ahjxjy.cn/EF169EBF3B5A0E90651AB7ACE96B040C.png title=17-1.png alt=17-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/56B93981B002838971EBF25D3AC2F4A2.png title=17-2.png alt=17-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/E9F6BA41157D8CA46B9D5A3E81810734.png title=17-3.png alt=17-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/C7458F8E481319090B41CC8B524B3827.png title=17-4.png alt=17-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/62FE82C216CE89376ABAECAD27885B2C.png title=14.png alt=14.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CA32C8E10E050D9A6550F694B8A4B48F.png title=14-1.png alt=14-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/5952853CABCCE94B90385066B98CFE5E.png title=14-2.png alt=14-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/AF1A30BCA241035CAADAE3F277C51583.png title=14-3.png alt=14-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/25085118195C02FF8202E639465C082C.png title=14-4.png alt=14-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/39D9B2CFD96BC159E9CF12859D438F07.png title=42.png alt=42.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/2625E92C431A4E01375CC11E9E47E3DF.png title=42-1.png alt=42-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/9960BD4F227791B04CF65EC362DD0E98.png title=42-2.png alt=42-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/08E2E135A8C43F903597147ED2BCE62A.png title=42-3.png alt=42-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/D99DBD371311A70D74107526ADD0E282.png title=42-4.png alt=42-4.png/>
【单选题】
下列矩阵可逆的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/161D3A72A99AD12BD9CDA544F169E867.png title=20-1.png alt=20-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/7E12C5B6548A318B0226C7A4A39831AA.png title=20-2.png alt=20-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/D88FD8B552950CCCF175266CEA23A45C.png title=20-3.png alt=20-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/352773A38D3E1460EF6FFC94E1ABF61C.png title=20-4.png alt=20-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E8A3B6E0BABD79C0A4B1085F13E8AECA.png title=3.png alt=3.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CCB262151FF70754533754FDFC3319C8.png title=3-1.png alt=3-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/83A1AEA490DB4820951AF907108F79C1.png title=3-2.png alt=3-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/74B78581095A22F88DDA8A4CAA34704C.png title=3-3.png alt=3-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CC7D345862A2E284E535841FF229A55E.png title=3-4.png alt=3-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/115C631A3CE70F1A61D5B209439A9F73.png title=43.png alt=43.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/B22720AE19FEF095718BF020B6FC0621.png title=43-1.png alt=43-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/75263DA522B164E955130BC081738A6E.png title=43-2.png alt=43-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C333D147B4ADBDFF6A63DB202A6E204F.png title=43-3.png alt=43-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/9551D44914818B1E8806142BE381A63C.png title=43-4.png alt=43-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/EBAE051745C3717BC3EE3EC439A7E1A1.png title=35.png alt=35.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/3DDF5AA6B081C21363F84A6690E11D8D.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/0A618DEB71DFB08395642727EB404E90.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C0370282C3A5960180F34EE989D3FB2E.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/E7FD5727FF719272403FD80042D31291.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/0BC0B742D38FA4E7E0EDC1F560C87F01.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/5A92A9A110A7F1D704DCC933E68F6C5A.png title=34.png alt=34.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/6087AE43417AF8F57554ADB4A731BA16.png title=34-1.png alt=34-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/CA5056F99EC79B715D8AEB3227F19B66.png title=34-2.png alt=34-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/40E1EFC99C4CC45D4A659428DC3D3606.png title=34-3.png alt=34-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/7380068D4B77F4F6899016B090472892.png title=34-4.png alt=34-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/1F19C313DAE19F506EB8C34E124A261D.png title=29.png alt=29.png/>