<?xml version="1.0" encoding="UTF-8"?>
<quiz>
 <!-- categoryid: 427 -->
 <question type="category"><category><text>Categoria per defecte en Batxillerat/Vectors</text></category></question>
 
 <!-- resourceid-resourcedataid: 4214-3808 -->
 <question type="cloze">
    <name><text>PE1</text>
</name>
    <questiontext>
<text><![CDATA[<p align="left">Sabent que <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mover accent=&quot;true&quot;»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«mfenced»«mrow»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«/mrow»«/mfenced»«/math»</span> i <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mover accent=&quot;true&quot;»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«mfenced»«mrow»«mo»-«/mo»«mn»4«/mn»«mo»,«/mo»«mn»1«/mn»«/mrow»«/mfenced»«/math»</span>, calculeu:</p>
<p align="center"> </p>
<div align="center">
  <table width="300" align="center" style="width: 300px; height: 86px;" border="1"><tbody>
    <tr>
      <td width="300" valign="top">
        <p align="center"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mover accent=&quot;true&quot;»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»·«/mo»«mover accent=&quot;true&quot;»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«/math»</span>{:SA:=-3}</p>
      </td>
    </tr>
    <tr>
      <td width="300" valign="top">
        <p align="center"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced»«mrow»«mn»2«/mn»«mover accent=&quot;true&quot;»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»-«/mo»«mn»21«/mn»«mover accent=&quot;true&quot;»«mi»b«/mi»«mo»§#8594;«/mo»«/mover»«/mrow»«/mfenced»«mo»·«/mo»«mfenced»«mrow»«mn»3«/mn»«mover accent=&quot;true&quot;»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»+«/mo»«mover accent=&quot;true&quot;»«mi»b«/mi»«mo»§#8594;«/mo»«/mover»«/mrow»«/mfenced»«mo»=«/mo»«/math»</span>{:SA:=0}</p>
      </td>
    </tr> </tbody>
  </table></div>]]></text>
    </questiontext>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <shuffleanswers>0</shuffleanswers>
</question>
 </quiz>
