\documentclass[a4paper,12pt]{article}
\usepackage{myXsim}

\title{Révision DNB: programme de calculs \\ annexe}
\tribe{Troisième}
\date{Juin 2018}

\geometry{left=10mm,right=10mm, top=10mm}
\pagestyle{empty}
\renewcommand{\arraystretch}{1}

\begin{document}

\begin{center}
    \includegraphics[scale=2]{./fig/graph_revi}
\vfill
    \includegraphics[scale=2]{./fig/graph_revi}
\end{center}

\end{document}

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