B^-1 * a =
1.5 1.5
.5 -.5
(b^-1*a)b =
3 0
0 1
Don't know why capital letters are being converted to small letters
Ok so on this weeks home work there is the following question
Let A =
2 1
1 2
Let B =
1 1
1 -1
Part 1 says compute which i found to be
=
0.5 0.5
0.5 -0.5
The next part is the problem it asks to show that is a diagonal matrix
Having multiplied i dont get i diagonal matrix i get
2 1
1 2
I have checked and re-checked all my working and cant see where im going wrong?
Any help most appreciated