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 <question type="category"><category><text>1MA 04. VECTORS/1MA.04.2 Operacions amb vectors</text></category></question>
 
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      <text>1MA.04.2.20DT RESTAR VECTORS</text>
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      <text><![CDATA[<table style="border: 4px solid #003300; float: none; text-align: left; vertical-align: top; background-image: url('http://www.insmilaifontanals.cat/none'); background-color: #ffffcc; width: 366px; height: 89px;" border="4" frame="void" rules="none" align="center">
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<td style="text-align: center; width: 50%; background-color: #003300;" colspan="2" valign="top"><span style="color: #ffff99; font-size: large; background-color: #003300;" data-mce-mark="1"><span data-mce-mark="1">Subtracció de vectors</span></span></td>
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<p><span style="color: #003300;" data-mce-mark="1"><strong><span style="font-size: small;" data-mce-mark="1">Restar un vector és sumar el seu oposat<br /></span></strong></span></p>
<p><span style="color: #003300;"><strong><span style="font-size: small;">(3,2) <span style="color: #ff0000;">- (-4,5)</span> = <span style="color: #003300;"><strong><span style="font-size: small;">(3,2) <span style="color: #0000ff;">+ (4,-5)</span></span></strong></span> =(7,-3)</span></strong></span> </p>
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