The matrix $M = \begin{bmatrix} 5 & 0 & 0 & 3 \\ 0 & 5 & 3 & 0 \\ 0 & 3 & 5 & 0 \\ 3 & 0 & 0 & 5 \end{bmatrix}$ has two distinct eigenvalues $\lambda_1 < \lambda_2$.
Find the eigenvalues and an orthonormal basis for each eigenspace.
$\lambda_1 = 2$
Orthonormal basis of eigenspace:
$\lambda_2 = 8$,
Orthonormal basis of eigenspace:
To enter a basis into WeBWork, place the entries of each vector inside of brackets, and enter a list of these vectors, separated by commas. For instance, if your basis is $\begin{Bmatrix} \begin{bmatrix} 1 \\ 2 \\ 3 \end{bmatrix}, \begin{bmatrix} 1 \\ 1 \\ 1 \end{bmatrix} \end{Bmatrix}$, then you would enter [1,2,3], [1,1,1] into the answer blank.