\[\boxed{\mathbf{754.ОК\ ГДЗ - домашка\ на}\ 5}\]
\[1)\ \overrightarrow{x} + \overrightarrow{y}\]
\(\ \)
\[2)\overrightarrow{\text{\ x}} + \overrightarrow{z}\]
\[3)\overrightarrow{\text{\ z}} + \overrightarrow{y}\]