?????? ???? ???????? ? ?? ????

????? ????? ?? "??? ??????" ?? "???? ??? ???????" ??? " ???? ???????? ?? ?? ????????" . ??????? ??? ??????? (?-?-?-?) ?? ?????  ??  ?(?-?) ?? ????? ??

In the additional papers you got about ????? complete nr.6 (1-2-3-4-5-7-9-10-12).  Try to work on nr.1-2 with other students or by yourself for more practice of ????? .