Sasor Messages 15 Reaction score 0 Thread starter Oct 31, 2012 #1 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?
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?
Dick Science Advisor Homework Helper Messages 26,254 Reaction score 623 Oct 31, 2012 #2 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.
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.