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jesuslovesu
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Homework Statement
The linear operator T on R^2 has the matrix [4 -5; -4 3]
relative to the basis { (1,2), (0,1) }
Find the eigenvalues of T.
Obtain an eigenvector corresponding to each eigenvalue.
Homework Equations
The Attempt at a Solution
I was able to find the eigenvalues (8 and -1) easily enough; however, I have not been able to find the eigenvectors. (I have a feeling it's due to a nonstandard basis being given.)
AX = 8X
AX = -1X
In the case of the first equation I get 4a - 5b = 8a; -4a + 3b = 8b so I would think an eigenvector could be (-5, 4) however my book says it should be (-5,-6). I believe this is because of the basis, but I really don't know what to do with it.