<center>
  <b>Exercice:</b> (<font color=magenta>En trois &eacute;tapes</font>) 
  <br>
  On consid&egrave;re la fonction r&eacute;elle 
  <br>
  <table bgcolor="wheat" cellpadding=4>
    <tr>
      <th align="center">
        <font size=+2>
	  !insmath f:= x\mapsto $pf
	</font>
     </th>
    </tr>
  </table>
  <br>
  <hr>
</center>
  
  !!!!!!!------- etape 1 -------!!!!!!!
  !if $rep=0
    !if $VFI1=$empty and $VFI2=$empty
      !read exo1Dir/question1
     !else
      !read exo1Dir/reponse1
    !endif
  !endif
  
  !!!!!!!------- etape 2 -------!!!!!!!
  !if $rep=1
    !if $VFimI1=$empty and $VFimI2=$empty
      !read exo1Dir/question2
     !else
      !read exo1Dir/reponse2
    !endif
  !endif
  
  !!!!!!!------- etape 3 -------!!!!!!!
  !if $rep=2
    !if $VFrecip1=$empty and $VFrecip2=$empty
      !read exo1Dir/question3
     !else
      !read exo1Dir/reponse3
    !endif
  !endif
  
  !!!!!!!------- au bout de l'exo -------!!!!!!!
  !if $rep=3
    !read exo1Dir/exo1but
  !endif

!!!!!!!!!!!!!!!!!!!!!!! FIN !!!!!!!!!!!!!!!!!!!!!!!
