Find a low-rank approximation Compute the optimal rank-2 approximation of the symmetric matrix A = [3.75 -1.25 0.25 -1.75 -1.25 3.75 -1.75 0.250.25 -1.75 3.75 -1.25 -1.75 0.25 -1.25 3.75]given that the columns of [ 1 1 1 -11 1 -1 11 -1 1 11 -1 -1 -1]are eigenvectors of A.A2 =
