How would you make this statement, AB=BA true

  • Thread starter Thread starter Sasor
  • Start date Start date
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 3K views
Sasor
Messages
15
Reaction score
0

Homework Statement



If A is a matrix, find B, a matrix so that

AB=BA


Homework Equations



?

The Attempt at a Solution



Solve for inverse?
 
Physics news on Phys.org
Sasor said:

Homework Statement



If A is a matrix, find B, a matrix so that

AB=BA


Homework Equations



?

The Attempt at a Solution



Solve for inverse?

B=I (the identity) always works. Or B=A. Or B=A^2. Or any combination of powers of A.