Determine column vector from eigenvalues...

NHgirl

New member
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Sep 22, 2010
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16
So I have two matrices:

\(\displaystyle A=\begin{bmatrix}0 & 1 & -2\\3 & -2 & 1 \\2 & -4 & -5\end{bmatrix}\)
b=\(\displaystyle \begin{bmatrix}2 \\ 0 \\1\end{bmatrix}\)

and i have to determine the column vector g so that the eigenvalues of \(\displaystyle A{c}=A-bg{T}\) (g transpose) are at \(\displaystyle -3, -2\pm3i\sqrt{\frac{3}{2}}\)

i've tried solving this in MATlab due to the lengthy algebraic expressions i am left with. is there an easier way to do this? when i try to solve the characteristic equation of the matric for the 3 values of lambda given to get the three unknowns i do not get the correct values. any suggestions??

-sorry for the messed up matrices...still new to attempting LaTex
 
Greetings-

I was wondering if you ever got some sort of clarification on this problem? It is tripping me up.
 
Old Post answered?

Did anybody ever get a response to this problem? i have a similar one that i need answered.
 
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