\documentclass[a4paper]{article}

\usepackage[portuges]{babel} 
\usepackage{amssymb,amsmath}
\usepackage{enumerate}
\usepackage[dvips]{graphicx}
\usepackage{psfrag}

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\newcommand{\Qq}{\mathbb{Q}}
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\begin{document}
\pagestyle{empty}
\begin{center}
{\Large{\bf An\'alise Matem\'atica III \\

$1^{\text{\underline{o}}}$ semestre de 2003/2004}}

\end{center}

\vspace{1cm}
\noindent
{\large{\bf Exerc\'{\i}cio teste 3}} (a entregar na aula pr\'atica da
semana de 06/10/2003)

\bigskip
\begin{itemize}
%%\item[1)]

\item[1)] Considerar o s\'olido 
$$C=\{(x,y,z)\in\Rr^3:0<x+y<3~,~0<z<2xy\}.$$
\begin{enumerate}[a)]
\item Esbo\cc ar $C$.
\item Escrever a express\ao do volume de $C$ na ordem de integra\cao 
$\leibn z ~\leibn y ~\leibn x$.
\item Determinar o volume de $C$.
\end{enumerate}

\end{itemize}

\end{document}