-21 & 29 & -53 \\
-35 & 35 & -67 \\
-11 & 3 & -11
\end{array}\right] \text { are } \mathbf{v}_{1}=\left[\begin{array}{lll}
1 & 2 & 1
\end{array}\right]^{\top}, \mathbf{v}_{2}=\left[\begin{array}{lll}
-1 & 1 & 1
\end{array}\right]^{\top} \text { and } \mathbf{v}_{3}=\left[\begin{array}{lll}
-3 & -2 & 1
\end{array}\right]^{\top} \text {. Calculate the } eigenvalues of the matrix corresponding to these eigenvectors.
Fig: 1
Fig: 2
Fig: 3
Fig: 4