!!!!!!!!------- la question de l'etape 1 -------!!!!!!!!
<b>Etape 1:</b> &nbsp; La fonction \(f\) ci-dessus admet deux intervalles 
de monotonie maximaux. Calculez ces intervalles.
<center>
!form reply
  !!!!---- premier intervalle ----!!!!
  <table>
    <tr><td>
     <table><tr>
      <td>
        <b>I<sub>1</sub>=</b>
      </td>
      <td bgcolor="wheat" nowrap>
        <tt><font color=magenta>
	<select name=rdelimg1>
	  !for i=1 to 3
	    <option value=$i
	     !if $i=$rdelimg1
	       selected
	     !endif
	    >$(delim$(i))
	  !next i
	</select>
        <input size=16 name=rborng1 value="$rborng1">
       <b>,</b>
        <input size=16 name=rbornd1 value="$rbornd1">
        <select name=rdelimd1>
	  !for i=1 to 3
	    <option value=$i
	     !if $i=$rdelimd1
	       selected
	     !endif
	    >$(delim$(i))
	  !next i
	</select>
	</font>
        </tt>
      </td></tr>
      </table></td>
   </tr>
   
   !if $1alertI1!=$empty
      <tr>
        <td align="center">
          <table>
             <tr>
               <td align="center">$1alertI1</td>
             </tr>     
         </table>
        </td>
      </tr>
   !endif
   !if $2alertI1!=$empty
      <tr>
        <td align="center">
          <table>
             <tr>
               <td align="center">$2alertI1</td>
             </tr>     
         </table>
        </td>
      </tr>
   !endif
 </table>
 
 <br>
 
   !!!!---- deuxieme intervalle ----!!!!
  <table>
    <tr><td>
     <table><tr>
      <td>
        <b>I<sub>2</sub>=</b>
      </td>
      <td bgcolor="wheat" nowrap>
        <tt><font color=magenta>
	<select name=rdelimg2>
	  !for i=1 to 3
	    <option value=$i
	     !if $i=$rdelimg2
	       selected
	     !endif
	    >$(delim$(i))
	  !next i
	</select>
        <input size=16 name=rborng2 value="$rborng2">
       <b>,</b>
        <input size=16 name=rbornd2 value="$rbornd2">
        <select name=rdelimd2>
	  !for i=1 to 3
	    <option value=$i
	     !if $i=$rdelimd2
	       selected
	     !endif
	    >$(delim$(i))
	  !next i
	</select>
	</font>
        </tt>
      </td></tr>
      </table></td>
   </tr>
   
   !if $1alertI2!=$empty
      <tr>
        <td align="center">
          <table>
             <tr>
               <td align="center">$1alertI2</td>
             </tr>     
         </table>
        </td>
      </tr>
   !endif
   !if $2alertI2!=$empty
      <tr>
        <td align="center">
          <table>
             <tr>
               <td align="center">$2alertI2</td>
             </tr>     
         </table>
        </td>
      </tr>
   !endif
 </table>
 
 !!!!---- envoi de la reponse et avertissement ----!!!!
 <table>
   <tr>
     <td align="center"> 
        <font color=darkcyan><input type=submit value="Envoyer"></font>
      </td>
   </tr>
   <tr>
     <td bgcolor="beige" align="center">
        <font color=red>Attention! &nbsp;</font> Pour 
        \(-\infty \)
        (resp. \(+\infty\) )
        tapez <b>-infinity</b> (resp. <b>+infinity</b>).
     </td>
   </tr>
 </table>
</form>
</center>
