1) { 58 ; -19 }
2) VN + MT = { 15 ; 16 }
VN - MT = { -9 ; 4 }
3*VN = { 9 ; 30 }
Объяснение:
1) 6*{-2;5} - 7*{-10;7} = {-12;30} - {-70;49} = {-12-(-70) ; 30-49} = {-12+70 ; 30-49} = {58;-19}
2) 3*VN = 3*{3;10} = {9;30}