Term paper: There were three ¡­

Term paper: There were three misprints (only one of them serious) in the answer to Problem 6 in the file (dated 24.11) that was posted on the web and handed out together with your marked papers. The serious one was in the evaluation of the determinant of the matrix A. It should end with

= a(a - 1)(-a + 1) = -a(a - 1)^2

not

= a(a - 1)(-1 + a) = -a(a - 1)^2

(which is wrong). A corrected version (dated 27.11) has now been posted on the web.