Даны векторы \(\displaystyle \overrightarrow {a} (2;3)\) и \(\displaystyle \overrightarrow {b}(3;9)\small.\) Найдите координаты вектора \(\displaystyle 2\overrightarrow {a}+ \overrightarrow {b}\small.\)

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

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