Exercise 31 chapter 5 Jun 22, 2016 8:03:36 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Admin on Jun 22, 2016 8:03:36 GMT I have re-published my solution to exercise 31 with some added discussion about the orthogonality or otherwise of the arcs $C$ and $D$.Vasco