Предмет: Геометрия, автор: Аноним

ДУЖЕ ТРЕБА, 3 ЗАВДАННЯ

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Ответы

Автор ответа: Аноним

1

Объяснение:

3m = {3*7; 3*1; 3*(-2)} = {21; 3; -6}

4n = {4*(-1); 4*2; 4*(-2)} = {-4; 8; -8}

Координати вектора а: a = {21-(-4); 3-8; -6-(-8)} = {25; -5; 2}

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