5-8-8 Let A=-8 5-8 and v1 Verify that 13 is an eigenvalue of A and v is an eigenvector. Then orthogonally diagonalize A. -8-8 5 The number 13 is an eigenvalue of A with eigenvector (Type an exact answer, using radicals as needed.) The vector v1 is an eigenvector of A with eigenvalue 11 (Type an exact answer, using radicals as needed.) Orthogonally diagonalize the matrix, giving an orthogonal matrix P and a diagonal matrix D. Enter the matrices P and D below. (Use a comma to separate matrices as needed. Type exact answers, using radicals as needed. Do not label the matrices.) ما