\input $HOME/tex_doc/format/myplain.tex \let \exo \Exo \withoutcorrigbody \date {24 septembre 2002} \classe {2L} \duree {1h} \titre {\twentybf Devoir surveillé n\raise 5pt \hbox {\tenbf o} 1} \def \datapath {% $HOME/tex_doc/lycee/database/2nd/algebre/nombres/} \bareme {3} \input \datapath prem_006.tex \bareme {3} \input \datapath frct_008.tex \bareme {2} \input \datapath rac_010.tex \bareme {2} \input \datapath rac_014.tex \bareme {3} \input \datapath puiss_003.tex \bareme {3} \input \datapath scient_003.tex \bareme {4} \input \datapath approx_006.tex \bye