I found the eigenvalues of both matrices. The characteristic equation for both matrices is .Quote:

Are the following pairs of matrices similar:

and ?

Hence the eigenvalues are -2 and -1 for both matrices.

Since the eigenvalues are the same for both matrices i'm pretty sure they're similar. However, the presence of a repeated eigenvalue (-2) makes me think they might not be.

Can anyone clarify this situation for me?