Question

Задание по векторам, помогите прошу

Answer 1

a = AB = (2-1; 3-1; 1- (-1)) = (1; 2; 2)

b = AC = (3-1; 2-1; 1- (-1)) = (2; 1; 2)

x = BC = (3-2; 2-3; 1-1) = (1; -1; 0)

d = -2*x = -2 * (1; -1; 0) = (-2; 2; 0)

Ответ: a = (1; 2; 2) , b = (2; 1; 2) , x = (1; -1; 0) , d = (-2; 2; 0)