设[img=98x51]18030b7c3d50c61.png[/img], [img=14x19]18030b7c477b621.png[/img]为2阶单位矩阵, 则下列等式中正确的是[ ].
A: [img=139x51]18030b7c52253d7.png[/img]
B: [img=139x51]18030b7c601905a.png[/img]
C: [img=139x51]18030b7c6a97a1f.png[/img]
D: [img=139x51]18030b7c75bd35a.png[/img]
E: [img=139x51]18030b7c8483e3f.png[/img]
A: [img=139x51]18030b7c52253d7.png[/img]
B: [img=139x51]18030b7c601905a.png[/img]
C: [img=139x51]18030b7c6a97a1f.png[/img]
D: [img=139x51]18030b7c75bd35a.png[/img]
E: [img=139x51]18030b7c8483e3f.png[/img]
举一反三
- 设[img=98x51]18037ad831c95dd.png[/img], [img=14x19]18037ad83aec2b3.png[/img]为2阶单位矩阵, 则下列等式中正确的是[ ]. A: [img=139x51]18037ad845e3d56.png[/img] B: [img=139x51]18037ad8516e3e3.png[/img] C: [img=139x51]18037ad85c0d9a1.png[/img] D: [img=139x51]18037ad866ee9d9.png[/img] E: [img=139x51]18037ad872895c3.png[/img]
- 设[img=98x51]18039339769ae1f.png[/img], [img=14x19]180393397f178c9.png[/img]为2阶单位矩阵, 则下列等式中正确的是[ ]. A: [img=139x51]1803933989c6769.png[/img] B: [img=139x51]1803933993846ad.png[/img] C: [img=139x51]180393399dbb39b.png[/img] D: [img=139x51]18039339a88e32b.png[/img] E: [img=139x51]18039339b3869a3.png[/img]
- 设[img=98x51]18037a3f9e7a574.png[/img], [img=14x19]18037a3fa715712.png[/img]为2阶单位矩阵, 则下列等式中正确的是[ ]. A: [img=139x51]18037a3fb272b08.png[/img] B: [img=139x51]18037a3fbd113f5.png[/img] C: [img=139x51]18037a3fc898e6c.png[/img] D: [img=139x51]18037a3fd44ea02.png[/img] E: [img=139x51]18037a3fdf18503.png[/img]
- 设[img=98x51]180383dd2faa8b9.png[/img], [img=14x19]180383dd381b944.png[/img]为2阶单位矩阵, 则下列等式中正确的是[ ]. A: [img=139x51]180383dd43fca45.png[/img] B: [img=139x51]180383dd4eb2c68.png[/img] C: [img=139x51]180383dd59bb318.png[/img] D: [img=139x51]180383dd647bc9f.png[/img] E: [img=139x51]180383dd6e99514.png[/img]
- 设[img=98x51]18036adbc5e4893.png[/img], [img=14x19]18036adbcf58ad3.png[/img]为2阶单位矩阵, 则下列等式中正确的是[ ]. A: [img=139x51]18036adbd9aadf5.png[/img] B: [img=139x51]18036adbe469fa9.png[/img] C: [img=139x51]18036adbee7cd5f.png[/img] D: [img=139x51]18036adbf880c56.png[/img] E: [img=139x51]18036adc03490f9.png[/img]