If AAA has eigenvalues 1,2,31, 2, 31,2,3, what are the eigenvalues of ATA^TAT?
1,2,31, 2, 31,2,3
−1,−2,−3-1, -2, -3−1,−2,−3
1,1/2,1/31, 1/2, 1/31,1/2,1/3
0,0,00, 0, 00,0,0