Solution Found!
The n × n matrix A =[aij] is called a diagonal matrix i
Chapter 2, Problem 14E(choose chapter or problem)
QUESTION:
The n × n matrix A =[aij] is called a diagonal matrix i aij = 0 when i ? j. Show that the product of two n × n diagonal matrices is again a diagonal matrix. Give a simple rule for determining this product.
Questions & Answers
QUESTION:
The n × n matrix A =[aij] is called a diagonal matrix i aij = 0 when i ? j. Show that the product of two n × n diagonal matrices is again a diagonal matrix. Give a simple rule for determining this product.
ANSWER:Solution:Step 1: Let suppose the n × n matrix A =[aij] is called a diagonal matrix i aij = 0 when i j.