\solution{9.1}{corriges/exercice-9.1.tex}
\solution{9.2}{corriges/exercice-9.2.tex}
\solution{9.3}{corriges/exercice-9.3.tex}
\solution{9.4}{corriges/exercice-9.4.tex}
\solution{9.5}{corriges/exercice-9.5.tex}
\solution{9.6}{corriges/exercice-9.6.tex}
\solution{9.7}{corriges/exercice-9.7.tex}
\solution{9.8}{corriges/exercice-9.8.tex}
\solution{9.9}{corriges/exercice-9.9.tex}
\solution{9.10}{corriges/exercice-9.10.tex}
\solution{9.11}{corriges/exercice-9.11.tex}
\solution{9.12}{corriges/exercice-9.12.tex}
\solution{9.13}{corriges/exercice-9.13.tex}
\solution{9.14}{corriges/exercice-9.14.tex}
\solution{9.15}{corriges/exercice-9.15.tex}