\input $HOME/tex_doc/format/myplain.tex \magnification 1200 \advance \vsize by 20mm \let \exo \Exo \withoutexobody \date {22 octobre 2003} \classe {2L} \titre {\twentybf Corrigé du devoir surveillé n\raise 5pt \hbox {\tenbf o} 3} \def \datapath {% $HOME/tex_doc/lycee/database/2nd/algebre/nombres/} \def \datapath {% $HOME/tex_doc/lycee/database/2nd/algebre/equations/} \input \datapath pol2_010.tex \input \datapath pol2_007.tex \input \datapath pol2_008.tex \input \datapath pol2_009.tex \def \datapath {% $HOME/tex_doc/lycee/database/2nd/geometrie/triangle/} \input \datapath sembl_008.tex \input \datapath sembl_003.tex \bye