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\usepackage[left=2cm,top=1cm,right=3cm,nohead,nofoot]{geometry}
\usepackage{amssymb,amsmath,amsthm,verbatim, bbm, amscd}
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\begin{document}


\includegraphics[height=2in]{plots.pdf}

\includegraphics[width=5in]{plots.pdf}

\end{document}
