\input $HOME/tex_doc/format/myplain.tex \magnification 1200 \let \exo \Exo \withoutcorrigbody \date {5 novembre 2003} \classe {S$_2$ mai} \duree {1h} \overfullrule 0pt \titre {\twentybf Devoir surveillé n\raise 5pt \hbox {\tenbf o} 2} \def \datapath{% $HOME/tex_doc/lycee/database/btsmai/analyse/equadiff/} \bareme {7} \input \datapath equ1_015.tex \def \datapath{% $HOME/tex_doc/lycee/database/btsmai/algebre/proba/} \bareme {13} \input \datapath cond_009.tex \bye