Hi guys, I was doing some past papers for my linear algebra course and came across this question. Part i) is where I am stuck on and would appreciate some guidance as to how to go about it.
As far as my understanding goes regarding this question, the eigenvalue of -2 has algebraic multiplicity of 3 and geometric multiplicity of 2. This means that the eigenspace is 2D. However I am unsure of how to relate the span of this eigenspace to that of 3D space as well as how generalised eigenvectors come into play.
Also, as far as my knowledge of generalised eigenvectors go, I know that they are vectors not in the kernel of (A - (lambda)*I) (and for higher power of this). That's about as much as I know about generalised eigenvectors.
Any help on this question would be greatly appreciated,