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\begin{document}
\chapter{بهينه سازی چند هدفه}
\begin{table}[h]
\begin{footnotesize}
\caption{\small  حل مسأله‌ی \eqref{river2}}\label{riverjadval} }  
\end{footnotesize}
\begin{center}
\begin{tabular}{|c|c|c|}
\hline

\multicolumn{1}{|c|}{\multirow{3}{*}{جواب نهایی}} &
\multicolumn{1}{|c|}{$ (20, 3 )$} & $ (\epsilon_{2}, \epsilon_{3})$\\ \cline{2-3}
\multicolumn{1}{|c|}{}                        &
\multicolumn{1}{|c|}{$ (0, 53921, 0, 49065) $ } & $ (s_{2}^{-}^{*},s_{2}^{+}^{*},s_{3}^{-}^{*},s_{3}^{+}^{*}) $\\ \cline{2-3}
\multicolumn{1}{|c|}{}                        &
\multicolumn{1}{|c|}{$ (3732.4, 5394.1, 4906.8) $} & $ (f_{1},f_{2},f_{3})$\\ \cline{2-3}
\hline
\end{tabular}
\end{center}
\end{table}\\
  
  \end{document}