91Ó°ÊÓ

Find the dimension of the eigenspace corresponding to the eigenvalue \(\lambda=3\). $$A=\left[\begin{array}{lll}3 & 1 & 0 \\\0 & 3 & 1 \\\0 & 0 & 3\end{array}\right]$$

Find the dimension of the eigenspace corresponding to the eigenvalue \(\lambda=3\). $$A=\left[\begin{array}{lll}3 & 1 & 1 \\\0 & 3 & 1 \\\0 & 0 & 3\end{array}\right]$$