\input $HOME/tex_doc/format/myplain.tex \withoutexobody \let \exo \Exo \date {25 septembre 2002} \classe {2L} \titre {\twentybf Corrigé du devoir surveillé n\raise 5pt \hbox {\tenbf o} 1} \def \datapath {% $HOME/tex_doc/lycee/database/2nd/algebre/nombres/} \input \datapath prem_006.tex \input \datapath frct_008.tex \input \datapath rac_014.tex \input \datapath equa_005.tex \input \datapath puiss_003.tex \input \datapath pol_001.tex \bye