If matrix AAA has eigenvalues λ1=4\lambda_1 = 4λ1=4 and λ2=2\lambda_2 = 2λ2=2, what are the eigenvalues of A−1A^{-1}A−1?
444 and 222
14\frac{1}{4}41 and 12\frac{1}{2}21
−4-4−4 and −2-2−2
The eigenvalues cannot be determined without knowing AAA