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 <question type="category"><category><text>Categoria per defecte en Batxillerat/Vectors</text></category></question>
 
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    <name><text>PE9</text>
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    <questiontext>
<text><![CDATA[<p title="p2"> Calculeu l'angles del vèrtex <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»A«/mi»«/math»</span> i <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»B«/mi»«/math»</span> en el triangle de la figura</p>
<p align="center"><img src="http://matvall.es/file.php/1/Problemes/PE/Problema2.JPG" /> </p>
<div align="left"></div>
<p align="center">l'angle del vèrtex <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»A«/mi»«mo»=«/mo»«/math»</span>{:SA:=45}<sup>o </sup>-------------- l'angle del vèrtex <span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»B«/mi»«mo»=«/mo»«/math»</span>{:SA:=90}<sup>o</sup></p>]]></text>
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    <shuffleanswers>0</shuffleanswers>
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