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Trobeu <span style="font-style: italic;"><font size="5"><span style="font-family: times new roman,times,serif;">a </span></font></span>i <span style="font-style: italic;"><font size="5"><span style="font-family: times new roman,times,serif;">b</span></font></span> sabent que la gràfica de la funció <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»y«/mi»«mo»=«/mo»«mi»a«/mi»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»b«/mi»«mi»x«/mi»«mo»+«/mo»«mi»#c«/mi»«/math»</span> i la recta <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»y«/mi»«mo»=«/mo»«mi»#r«/mi»«/math»</span> són tangents en <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi»x«/mi»«mo»=«/mo»«mi»#x0«/mi»«/math»</span><br /><font size="5"><span style="font-style: italic; font-family: times new roman,times,serif;">a</span></font> ={:SA:~=\#a} <font size="5"><span style="font-style: italic; font-family: times new roman,times,serif;">b </span></font>= {:SA:~=\#b}.<br />
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Monday, 15 July 2013, 9:11 AM
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