If AAA is a 2×22 \times 22×2 matrix with tr(A)=4\text{tr}(A) = 4tr(A)=4 and det(A)=3\det(A) = 3det(A)=3, what are the eigenvalues?
1,31, 31,3
2,22, 22,2
0,40, 40,4
1,21, 21,2