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\usepackage{lipsum}
\begin{document}
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% Dedicado a Federico Vargas
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{\large \textsc{Universdad Nacional Autónoma de México}}
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\\
{ \huge \textbf{Tarea I}}
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\textbf{Cálculo Integral y Diferencial III}
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% NOMBRES DE INTEGRANTES
\item \small Edson André Cortes Silva
\item \footnotesize Frida Michelle Vargas Bautista
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\section{Introducción}
\begin{enumerate}
\item \lipsum[1-1]
\item \lipsum[2-4]
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\end{document}
