1. Prove the following:Let A;B and C are matrices of order (m x n); (n x p) and (p x q) respectively.?

Question

Then prove
(AB)C = A(BC):

Answer 1

(m*n x n*p)(p*q)=(m*n)(n*p x p*q)
(m*p)(p*q)=(m*n)(n*q)
m*q=m*q

Answer 2

Yep.....when nothing else to do I start around page 6 and work backwards.