688−i¯113¯i.i
Задание

Вычисли:

\(\begin{array}{ll} \begin{array}{l} {}_{-\!}688 \\ \,\,\,\,\underline{\square} \end{array} & \left| \begin{array}{l} \underline{113} \\ \square. \end{array} \right. \\ \,\,\,\,\,\square \end{array}\)