- #1

imsleepy

- 49

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**eigenval/vect question, double check my answers, don't make sense....**

## Homework Statement

find eigenvalues and eigenvectors of matrix A =

102

012

223

## Homework Equations

A -λI etc blah

## The Attempt at a Solution

I'm getting λ = 1, -1, 5.

For λ = 1, v = (-1,1,0)t (t being a real integer constant), and double checking says it's right.

For λ = -1, I'm getting v = (1,1,1)t but if i double check by multiplying it with the matrix A I'm not getting something in the form of v (i'm getting like.. 3,3,7, which doesn't make sense to me).

For λ = 5, i got v = (1,1,2)t but again double checking doesn't give a vector in this form! (multiplying this v by A gives me 3,3,14) :angry:

what am i doing wrong??