Need help conceptually with eigenvector solution

frank789

Junior Member
Joined
Sep 16, 2017
Messages
58
hi all

came across a problem in my homework set which gave 3 eigenvalues and when I worked them through for the eigenvectors I got only 2 unique eigenvectors.

Am i correct to reason that having n eigenvalues does not necessarily translate to n unique eigenvectors?

if so why is this the case?

for completeness, here is the problem:

[1 1 0; 3 3 4;-1 -1 0]

semi colon denotes new row.

we worked down to eigenvalues of 2, 3 and 3 and the vectors being {-1,1,0}, {-1,-1,1}, the later of course coming out twice.

an explanation would be much appreciated! :)
 
Please show your characteristic equation and explain why you did not get \(\displaystyle \lambda = 0\) as an Eigenvalue.
 
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