ABA^-1=BA^-1 +3E
AB=B+3A
(A-E)B=3A
B=3A(A-E)^-1
|A|^(4-1)=|A*|
|A|=2
A=diag(2,2,2,1/4)
(A-E)^-1=diag(1,1,1,-4/3)
B=diag(6,6,6,-1)
ABA^-1=BA^-1 +3E
AB=B+3A
(A-E)B=3A
B=3A(A-E)^-1
|A|^(4-1)=|A*|
|A|=2
A=diag(2,2,2,1/4)
(A-E)^-1=diag(1,1,1,-4/3)
B=diag(6,6,6,-1)