1 ) a = -1: b = 4; 2) a = - 4; b = 2:
3) a = 1,5; b = 6:
4) a = -2,3; b = 5;
5) a = -7; b = -3
6) a = -4; b = 5

666555y67767676    3   03.11.2020 12:55    0