Answer to Question #35217 in Linear Algebra for Prabhankar Porwal

Question

eg: A = [1 2; 3 4; 5 6] and now last column has been changed as
A1 = [3 4; 5 6; 7 8] and all row is shifted one position upward. how can i
get inverse of A1 in terms of A.

in another case A2 = [1 2; 3 4; 7 8] i.e. only last column terms is modified.
How to get A2 inverse in terms of A.

Answer 1

Dear visitor
Unfortunately, the statement of your question is a bit confusing.
Since A1 and A2 are not square matrices, therefore the inverse matrix of A1 does not exist as well as the inverse matrix of A2.
Please, give us the details so we could help you.