Find the eigenvalues and eigenvectors of the matrix A. Determine if the matrix is diagonalizable. If so, find the nonsingular matrix P that diagonalizes A. 1 A = -1 -4 4 -1 (b) [5 points] Write the given system in matrix form: dx - -3x + 4y + esin 2t dt 5x +9z+ 4e cos 2t y+ 6z - et dt dz dt =