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a) The closest point to the origin on the surface <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»#f«/mi»«mo»=«/mo»«mn»0«/mn»«mo»,«/mo»«mo»§nbsp;«/mo»«mi»x«/mi»«mo»,«/mo»«mi»y«/mi»«mo»,«/mo»«mi»z«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/math»</span> is<br /><br /> <div style="text-align: center;"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«msub»«mi»x«/mi»«mn»0«/mn»«/msub»«mo»,«/mo»«msub»«mi»y«/mi»«mn»0«/mn»«/msub»«mo»,«/mo»«msub»«mi»z«/mi»«mn»0«/mn»«/msub»«/mrow»«/mfenced»«mo»=«/mo»«/math»</span> <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo largeop=¨true¨»(«/mo»«/math»</span>{1:SA:=#x0} , {1:SA:=#x0}, {1:SA:=#x0} <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo largeop=¨true¨»)«/mo»«/math»</span> <br /><br /> <div style="text-align: justify;"><br />b) The maximum and minimum sum of coordinates of points on the surface <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»#g«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span> are<br /><br /><br /> <div style="text-align: center;">Maximum: {2:SA:=#S1}<br /><br /><br />Minimum: {2:SA:=#S2}</div></div></div>
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Thursday, 10 December 2015, 10:53 AM
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