\input $HOME/tex_doc/format/myplain.tex %\magnification 1200 %\advance \vsize by 21mm \let \exo \Exo \withoutexobody %\withoutexono \date {9 mars 2004} \classe {S$_2$ mai} %\duree {2h} %\overfullrule 0pt %\footline {\hss \tenrm -- \folio $/3$\ --\hss} def \titre {\twentybf Corrigé du devoir surveillé n\raise 5pt \hbox {\tenbf o} 6} \def \datapath { $HOME/tex_doc/lycee/database/btsmai/stats/infer/} \input \datapath synt_007.tex \def \datapath { $HOME/tex_doc/lycee/database/btsmai/analyse/equadiff/} \input \datapath equ1_030.tex \bye