\input $HOME/tex_doc/format/myplain.tex \magnification 1200 \advance \vsize by 20mm \let \exo \Exo \withoutcorrigbody \date {8 octobre 2003} \classe {2L} \duree {1h} \titre {\twentybf Devoir surveillé n\raise 5pt \hbox {\tenbf o} 2} \def \datapath {% $HOME/tex_doc/lycee/database/2nd/algebre/nombres/} \bareme 3 \input \datapath interv_008.tex \bareme 2 \input \datapath rac_015.tex \bareme 2 \input \datapath rac_016.tex \def \datapath {% $HOME/tex_doc/lycee/database/2nd/geometrie/triangle/} \bareme 5 \input \datapath trig_001.tex \def \datapath {% $HOME/tex_doc/lycee/database/2nd/geometrie/config/} \bareme 4 \input \datapath cerc_001.tex \bareme 4 \input \datapath thales_001.tex \bye