Please help me prove the followings, than you so much!!!
1. Assume A, B and A+B are invertible
圖片參考:http://imgcld.yimg.com/8/n/HA00008075/o/701109270014313875240990.jpg
2.
If I - AB is invertible, then I - BA must also be invertible.
收錄日期: 2021-04-23 23:24:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110927000051KK00143