Предмет: Геометрия, автор: evavasulyk06

При якому значенні Х вектори а(Х;-10),b (3;5) будуть колінеарними?
Буду вдячна ❤️

Ответы

Автор ответа: Аноним
11

Векторы коллинеарны, если их координаты пропорциональны.

\vec a(x;-10),\vec b(3;5)\\\\\dfrac x3=\dfrac{-10}5\\\\x=-2\cdot 3=-6

Ответ: -6.

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