Найти координаты вектора m=3a - 2b, если а {-2; 1}, b {-3; 2} {0; -1} {1; 0} {0;...

harukov @harukov

July 2022 1 12 Report

Найти координаты вектора m=3a - 2b, если а {-2; 1}, b {-3; 2}
{0; -1}
{1; 0}
{0; 1}
{-1; 0}
выберите правильный ответ

Answers & Comments

Artem112

Verified answer

$\vec{a}=\{-2;\ 1\}$

$\vec{b}=\{-3;\ 2\}$

$3\vec{a}=\{-2\cdot3;\ 1\cdot3\}=\{-6;\ 3\}$

$2\vec{b}=\{-3\cdot2;\ 2\cdot2\}=\{-6;\ 4\}$

$3\vec{a}-2\vec{b}=\{-6-(-6);\ 3-4\}=\boxed{\{0;\ -1\}}$

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