Given a matrix AAA such that A2−4A+3I=0A^2 - 4A + 3I = 0A2−4A+3I=0, what are the possible eigenvalues of AAA?
{1,3}\{1, 3\}{1,3}
{0,4}\{0, 4\}{0,4}
{1,−3}\{1, -3\}{1,−3}
{3,4}\{3, 4\}{3,4}