1. (1, 2, 1, -1)+(3, 2, -1, 2). 2. 3(1, -1, 0, 3)+2(-1, 2, 3, 1)-(1, 1, 6, 11). 3. (1 2 -1) + 3 (-1 3 1) -2 ( 2 4 1) (2 1 1) ( 2 1 2) (-1 3 2).

Ответ:

Пошаговое объяснение:

1) (1,2,1,-1)+(3,2,-1,2)=(1+3,2+2,1-1,-1+2)=(4,4,0,1)

2) 3(1,-1,0,3)+2(-1,2,3,1)-(1,1,6,11)=(3-2-1,-3+4-1,0+6-6,9+2-11)=(0,0,0,0)

3)(1, 2, -1) + 3(-1, 3, 1) - 2(2, 4, 1) = (1-3-4, 2+9-8, -1+3-2) = (-6, 3, 0)

4)(2, 1, 1) + (2, 1, 2) - (-1, 3, 2) = (2+2+1, 1+1-3, 1+2-2) = (5, -1, 1)