2
$\begingroup$

Let A and B be any two 3 by 3 matrices with eigen values 1,2,3 and -1,-4,-2 respectively.Then my Question is to find out the determinant of A+B? Thanks in advance for valuable comments.

  • 1
    Does the question say that the eigenvalues correspond to the same eigenvectors?2012-12-16
  • 0
    >@Martin I have not much more information about the problem.thank you sir.sir, is it possible that the sum of the eigen values of two matrices will be eigen values of resulting one.2012-12-17

2 Answers 2