Find the eigenvalues and eigenvectors of A geometrically over the real numbers R. (If an eigenvalue does not exist, enter DNE. If an eigenvector does not exist, enter DNE in any single blank.) (reflection in the line y = x) 0 1 A = 1 0 11 1 = 1 x has eigenspace span (smaller A-value) 1 1 12 = -1 × has eigenspace span (larger A-value) -1