- #1
Bachelier
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A,B are nxn. If AB is invertible. Show that A and B are invertible.
I know how to prove it by determinant, using linear transformations and contradictions.
I am looking for a direct way using a proof by matrices. Can anyone think of one?
Thank you.
I know how to prove it by determinant, using linear transformations and contradictions.
I am looking for a direct way using a proof by matrices. Can anyone think of one?
Thank you.