\documentclass{article} \usepackage{mathtools} \usepackage{amssymb} \title{Analyse 1 - TD 1 \\ NON CORRIGÉ} \author{Timéo Pochin} \begin{document} \maketitle \section*{Exercice 1} \subsection*{a)} \subsection*{b)} \subsection*{c)} \subsection*{d)} \subsection*{e)} \subsection*{f)} \subsection*{g)} \subsection*{h)} \subsection*{i)} \subsection*{j)} \subsection*{k)} \end{document}