Let's summarize the information regarding the eigenvalues and eigenvectors for the given matrix \( A \):
### Given Matrix:
\[
A = \begin{bmatrix}
4 & 0 & 1 \\
-2 & 1 & 0 \\
-2 & 0 & 1
\end{bmatrix}
\]
### Eigenvalues:
To find the eigenvalues, we solve the characteristic equation \( \text{det}(A - \lambda I) = 0 \). We calculated that:
\[
\text{det}(A - \lambda I) = (1 - \lambda)(\lambda - 2)(\lambda - 3) = 0
\]
This gives us the