
Matrix algebra
Hi everyone can some help me with this? I have been working on this problem for three days straight but to no avail.
Assume there two N x M matrices A and B:
such that their inverses of A'B, B'A and B'B can be found.
Where the mark: ' represents a transpose function.
Given that show that: (VA)^1(V'y) yeilds:
(B'A)^1(B'y)
where V= B(B'B)^1B'A
the "^1" represents an inverse matrix.
Hope you can can assist.
thanks!

Re: Matrix algebra
Something's wrong with your statement. The matrix $\displaystyle V$ has size $\displaystyle n\times m$ and so $\displaystyle VA$ is not defined.