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Donats els vectors <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover accent="true"»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«mfenced»«mrow»«mn»9«/mn»«mo»,«/mo»«mn»0«/mn»«/mrow»«/mfenced»«/math»</span>, <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover accent="true"»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«mfenced»«mrow»«mo»-«/mo»«mn»3«/mn»«mo»,«/mo»«mn»2«/mn»«/mrow»«/mfenced»«/math»</span> i <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover accent="true"»«mi»w«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«mfenced»«mrow»«mo»-«/mo»«mn»6«/mn»«mo»,«/mo»«mn»1«/mn»«/mrow»«/mfenced»«/math»</span>, calculeu <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»§#945;«/mi»«/math»</span> i <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»§#946;«/mi»«/math»</span> de forma que <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover accent="true"»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»=«/mo»«mi»§#945;«/mi»«mo»·«/mo»«mover accent="true"»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«mo»+«/mo»«mi»§#946;«/mi»«mo»·«/mo»«mover accent="true"»«mi»w«/mi»«mo»§#8594;«/mo»«/mover»«/math»</span> <p><span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»§#945;«/mi»«mo»=«/mo»«/math»</span>{:SA:=1} <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»§#946;«/mi»«mo»=«/mo»«/math»</span>{:SA:=-2}</p>
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Monday, 12 August 2013, 9:04 AM
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