[Emergency Help] Tongji 5th Edition Engineering Mathematics Linear Algebra, p1page 32 16, why is c equal to the product of two matrices? Thank you very much.
This is the application of two transformations.
First, X = AY.
Then Y = BZ
So x = ay = a (BZ) = (ab) z ab) z.
So C = AB.
If you are satisfied, please adopt it.