\input $HOME/tex_doc/format/myplain.tex %\magnification 1200 \advance \vsize by 12mm \let \exo \Exo \withoutcorrigbody \date {20 janvier 2004} \classe {S$_2$ mai} \duree {2h} \overfullrule 0pt \titre {\twentybf Devoir surveillé n\raise 5pt \hbox {\tenbf o} 4} \def \datapath{% $HOME/tex_doc/lycee/database/btsmai/analyse/equadiff/} \bareme {12} \input \datapath equ2_016.tex \def \datapath{% $HOME/tex_doc/lycee/database/btsmai/stats/infer/} \bareme 8 \input \datapath synt_005.tex \bye