а = (2; 3 ; 1) b = (0; 4; -2)
Следовательно a - b = (2 - 0; 3 - 4; 1 - (-2)) = (2; -1; 3) = 2 * i - j + 3 * k
а = (2; 3 ; 1) b = (0; 4; -2)
Следовательно a - b = (2 - 0; 3 - 4; 1 - (-2)) = (2; -1; 3) = 2 * i - j + 3 * k