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<p align="left"> Calculeu l'angle que formen <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover accent="true"»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«/math»</span> i <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mover accent="true"»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«/math»</span></p> <div align="center"> <table width="540" align="center" style="width: 540px; height: 39px;" border="1"><tbody> <tr> <td width="150" valign="top"> <p align="center"><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»3«/mn»«mo»,«/mo»«mo»-«/mo»«mn»5«/mn»«/mrow»«/mfenced»«/math»</span> i <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»«mn»15«/mn»«mo»,«/mo»«mn»9«/mn»«/mrow»«/mfenced»«/math»</span></p> </td> <td width="150" valign="top"> <p align="center"><span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»§#945;«/mi»«mo»=«/mo»«mo»§#8736;«/mo»«mfenced»«mrow»«mover accent="true"»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»,«/mo»«mover accent="true"»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«/mrow»«/mfenced»«mo»=«/mo»«/math»</span>{:SA:=90}<sup>o</sup></p> </td> </tr> <tr> <td width="150" valign="top"> <p align="center"><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»«msqrt»«mn»3«/mn»«/msqrt»«mo»,«/mo»«mn»1«/mn»«/mrow»«/mfenced»«/math»</span> i <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»2«/mn»«msqrt»«mn»3«/mn»«/msqrt»«mo»,«/mo»«mn»2«/mn»«/mrow»«/mfenced»«/math»</span></p> </td> <td width="150" valign="top"> <p align="center"><span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»§#945;«/mi»«mo»=«/mo»«mo»§#8736;«/mo»«mfenced»«mrow»«mover accent="true"»«mi»u«/mi»«mo»§#8594;«/mo»«/mover»«mo»,«/mo»«mover accent="true"»«mi»v«/mi»«mo»§#8594;«/mo»«/mover»«/mrow»«/mfenced»«mo»=«/mo»«/math»</span>{:SA:=120}<sup>o</sup></p> </td> </tr></tbody> </table></div>
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Monday, 12 August 2013, 9:04 AM
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