Q52. If necessary, review the Wikipedia page "matrix multiplication." Then practice with the following

A =

a b
c d
e f

B =

e f g
h i j

C =

1 1 1 0
0 1 0 1

D =

1 1
1 1
1 0
1 0

What is (1) AxB (2) CxD (3) AxC (4) DxB (5) BxC