Problem 10E

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

SOLUTION

Step 1

Given that A is a matrix, B is a and C is a

In this problem we are asked to define which of the following are defined and we have to find the size of those defined products.