Show that

Assuming A is invertible.

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- September 9th 2009, 01:31 PMRedKManMatrix Inverse Proof
Show that

Assuming A is invertible. - September 9th 2009, 01:59 PMMatt Westwood
If you can take the assumption that the determinant of a matrix and its transpose are equal, you can do it by induction and the definition of the inverse as it is defined in terms of cofactors.

Here's Wikipedia:

Invertible matrix - Wikipedia, the free encyclopedia

... it might help. - September 9th 2009, 02:17 PMpedrosorio

By definition of inverse matrix, is the inverse of , hence: