If B has an inverse, so does . What is and ?
suppose A and B are invertible matrices.
Show that Bt is also invertible by producing a matrix C such that (BtA)C=I and C(BtA)=I
thanks
Mr F edit: The OP adds that t is the transpose. So the question is probably the following:
Suppose A and B are invertible matrices.
Show that is also invertible by producing a matrix C such that and .