Даны векторы \(\displaystyle \overrightarrow {a} (2;3)\small,\) \(\displaystyle \overrightarrow {b}(-3;7)\small,\) \(\displaystyle \overrightarrow {c} (7;-1)\small.\)

Найдите координаты вектора \(\displaystyle \overrightarrow {a}+\overrightarrow {b}-2\overrightarrow {c} \small.\)

Координаты вектора \(\displaystyle \overrightarrow {a}+\overrightarrow {b}-2\overrightarrow {c}{:}\)

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