If A is any square matrix, then matrix 1 2 (A AT ) is
Chapter 5, Problem 22(choose chapter or problem)
If A is any square matrix, then matrix 1 2 (A AT ) is skew-symmetric.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer