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<table style="border: 4px solid #000099; margin-left: auto; margin-right: auto; width: 400px; background-color: #ffffcc;" border="4"> <tbody> <tr> <td style="background-color: #000099;" align="center" valign="middle"><span style="font-size: large; color: #ffff99;">Arrel n-èsima</span></td> </tr> <tr> <td> <p><span style="color: #000080;"><strong>S'anomena arrel n-èsima del nombre x, el nombre y que elevat a n dona x: «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mroot mathcolor=¨#00007F¨»«mi mathvariant=¨bold¨»x«/mi»«mi mathvariant=¨bold¨»n«/mi»«/mroot»«mo mathvariant=¨bold¨ mathcolor=¨#00007F¨»=«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#00007F¨»y«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#00007F¨»§#160;«/mo»«mo mathvariant=¨bold¨ mathcolor=¨#00007F¨»§#8660;«/mo»«msup mathcolor=¨#00007F¨»«mi mathvariant=¨bold¨ mathcolor=¨#00007F¨»y«/mi»«mrow»«mi mathvariant=¨bold¨»n«/mi»«mo mathvariant=¨bold¨»§#160;«/mo»«/mrow»«/msup»«mo mathvariant=¨bold¨ mathcolor=¨#00007F¨»=«/mo»«mo mathvariant=¨bold¨ mathcolor=¨#00007F¨»§#160;«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#00007F¨»x«/mi»«/math»</strong></span></p> <p><span style="color: #000080;"><strong>També es pot escriure com un exponent <span style="color: #000080;"><span style="text-decoration: underline;">FRACCIONARI</span>:</span></strong></span></p> <p><span style="color: #000080;"><strong><span style="color: #000080;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mroot mathcolor=¨#00007F¨»«msup»«mi mathvariant=¨bold¨»x«/mi»«mi mathvariant=¨bold¨»m«/mi»«/msup»«mi mathvariant=¨bold¨»n«/mi»«/mroot»«mo mathvariant=¨bold¨ mathcolor=¨#00007F¨»=«/mo»«msup mathcolor=¨#00007F¨»«mi mathvariant=¨bold¨ mathcolor=¨#00007F¨»x«/mi»«mfrac»«mi mathvariant=¨bold¨»m«/mi»«mi mathvariant=¨bold¨»n«/mi»«/mfrac»«/msup»«/math»</span></strong></span></p> </td> </tr> </tbody> </table>
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