Problem
1. Let Find all eigenvalues of M. Does M have two linearly independent eigenvectors?
2. Prove that the eigenvalues of A and A T are identical.
3. Prove that the eigenvalues of a diagonal matrix are equal to the diagonal elements.
4. Suppose that matrix A has an eigenvector v with eigenvalue λ. Show that v is also an eigenvector for A2, and find the corresponding eigenvalue. How about for Ak, for 2 ≤ k ≤ n?