If a matrix AAA has eigenvalues λ1=2,λ2=3\lambda_1=2, \lambda_2=3λ1=2,λ2=3, what are the eigenvalues of A−1A^{-1}A−1?
222 and 333
−2-2−2 and −3-3−3
1/21/21/2 and 1/31/31/3
−1/2-1/2−1/2 and −1/3-1/3−1/3