Let A be a 3 × 4 matrix. B be a 4 × 5 matrix, and C be a 4 × 4 matrix. Determine which of the following products are defined and find the size of those that are defined.
a) AB b)BA c) AC d) CA e) BC f) CB
keywords: multiplying, multiplication, matrices
The sizes of product matrices are determined. The solution is detailed and well presented.