\input $HOME/tex_doc/format/myplain.tex \magnification 1200 \let \exo \Exo %%\withoutexono \withoutcorrigbody \advance \vsize by 15mm \date {12 février 2003} \classe {2L} \duree {1h} %%\classification {\twentybf NOM~:} {} \titre {\twentybf Devoir surveillé n\raise 5pt \hbox {\tenbf o} 8} \def \datapath {% $HOME/tex_doc/lycee/database/2nd/algebre/systemes/} \withoutexohead %%\bareme {3} %\input \datapath syst_001.tex \def \datapath {% $HOME/tex_doc/lycee/database/2nd/geometrie/analytique/} %%\withoutexohead %%\bareme {17} \input \datapath synt_004.tex \bye