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<table style="text-align: left; margin-left: auto; margin-right: auto; background-color: #ffffcc; background-image: url('http://www.insmilaifontanals.cat/none'); color: #006600; border: 4px solid #003300; float: none; vertical-align: top; width: 400px;" border="4" frame="void" rules="none" align="center"> <tbody> <tr style="background-color: #006600;"> <td style="background-color: #003300; width: 100%;" valign="top"> <div style="text-align: center;"><span style="font-size: large; color: #ffff99;">De forma binòmica a forma polar</span></div> </td> </tr> <tr> <td valign="top" width="100%"> <div style="text-align: center;"> </div> <span style="font-weight: bold; font-size: small; color: #003300;">El nombre complex z = a+bi es pot escriure en forma polar : </span><br style="font-weight: bold;" /> <div style="text-align: center; font-weight: bold;"><span class="nolink" style="font-size: small; color: #003300;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»z«/mi»«mo mathcolor=¨#003300¨»§#160;«/mo»«mo mathcolor=¨#003300¨»=«/mo»«mo mathcolor=¨#003300¨»§#160;«/mo»«msub mathcolor=¨#003300¨»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»r«/mi»«mrow»«mi mathvariant=¨bold¨»§#945;«/mi»«mo»§#176;«/mo»«/mrow»«/msub»«/mrow»«/mstyle»«/math»</span></div> <ul> <li style="font-weight: bold;"><span style="color: #003300;"><strong><span style="font-size: small;">r és el <span style="font-size: small;">MÒDUL</span>. Es calcula amb: r = <span style="font-size: small;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«msqrt mathcolor=¨#003300¨»«msup»«mi mathvariant=¨bold¨»a«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi mathvariant=¨bold¨»b«/mi»«mn»2«/mn»«/msup»«/msqrt»«/mstyle»«/math»</span></span></strong></span></li> <li><span style="font-size: small;"><span style="color: #003300;"><strong><span style="font-size: small;">α és l'<span style="font-size: small;"> ARGUMENT</span>. Es calcula amb: </span></strong><span style="font-size: small;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»§#945;«/mi»«mo mathcolor=¨#003300¨»=«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»arc«/mi»«mo mathcolor=¨#003300¨»§#160;«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»tg«/mi»«mfrac mathcolor=¨#003300¨»«mi mathvariant=¨bold¨»b«/mi»«mi mathvariant=¨bold¨»a«/mi»«/mfrac»«/mrow»«/mstyle»«/math»</span></span><span style="font-size: small;">.</span></span></li> </ul> <p style="text-align: center;"><span style="font-size: small; color: #ff0000;"><strong>Els signes de a i b ens indiquen </strong></span></p> <p style="text-align: center;"><span style="font-size: small; color: #ff0000;"><strong>en quin quadrant està l'afíx del nombre.</strong></span></p> </td> </tr> </tbody> </table>
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