Предмет: Математика, автор: vfbytpvfbytpvfbytp

При каком значении (альфа) вектор а(3;-а;1) перпендикулярен вектору b(6;2;0)?

Ответы

Автор ответа: as11111

Ответ: α = 9

Пошаговое объяснение:

Вектора перпендикулярны, когда их скалярное произведение равно 0.

(a, b) = 3 * 6 + (-α) * 2 + 1 * 0 = -2α + 18

-2α + 18 = 0

α = 9

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