Find the eigenvalues of the given matrix. (Enter your answers as a comma-separated list.) 3 6 0 −4 λ = Find the eigenvectors. (Enter your answers in order of the corresponding eigenvalues, from smallest to largest real part and then smallest to largest imaginary part, if applicable.) K1 = K2 = Using this theorem or its rephrasing, state whether the matrix is singular or nonsingular. singular nonsingular