We are a quite a few students at in the class struggling to compute this would anyone be able to help? Also note --> ' means transpose.
Sorry for the misunderstanding, when I said that it is not possible to divide by T since it is a matrix, i meant that since the sum after 1/T is a matrix how can you divide the matrix by T.
Also could someone clarify the length of T since I might have misunderstood. I thought T would be 3 do to the number of values in e.