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If the following matrix
$$ \begin{bmatrix} 40 & -29 & -11 \\ -18 & 30 & -12 \\ 26 & 24 & -50 \end{bmatrix} $$ has a complex eigen value $\lambda\neq 0$, then matrix has must have an eigenvalue

a. $\lambda +20$

b. $\lambda-20$

c. $20- \lambda$

d. $-20- \lambda$

Can anyone help me please....

1 Answers 1