Question
Sun April 12, 2015 By: Jasbeer Jaglan

in this topic when we apply ele. row operation we write A = IA and for column A = AI . but we are confuse this concept . Can we write AAinverse = I for both the operation.

Expert Reply
satyajit samal
Mon April 13, 2015
A=IA=AI is always true for a matrix A and an identity matrix I.
So, we can use A =IA or A=AI as per convenience.
A-1A=I is true for any matrix A. So we can write it for both the operations.
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