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<div style="text-align: center; font-weight: bold; color: #006600;"><span style="font-size: large;"><br /><br /> </span> <table style="background-color: #ffffcc; background-image: url('http://www.insmilaifontanals.cat/none'); float: none; text-align: left; vertical-align: top; border: 4px solid #003300; width: 400px; height: 110px;" border="4" frame="box" rules="all" align="center"> <tbody> <tr> <td style="background-image: url('http://www.insmilaifontanals.cat/none'); border: 2px solid #003300; text-align: left; vertical-align: top; background-color: #003300; width: 50%;" align="center" valign="middle"> <div style="text-align: center;" align="justify"><span style="color: #ffff99;"><span style="font-size: large;">Condició de perpendicularitat amb <span class="nolink">vectors</span> <br /></span></span></div> <div align="justify"> </div> </td> </tr> <tr> <td style="background-image: none; border-color: #006600; border-width: 2px; text-align: left; vertical-align: top; border-style: solid;" valign="top" width="50%"> <div align="justify"><span style="color: #003300;"><span style="font-weight: bold;"><span style="font-size: small;">2 <span class="nolink">rectes</span> són perpendiculars si, i només si, els seus <span class="nolink">vectors</span> directors són perpendiculars</span><span style="font-size: large;"><span style="font-size: small;">, </span></span></span></span><span style="color: #008000;"><span style="font-size: small; color: #003300;"><span style="font-weight: bold;">o sigui si </span></span><span style="font-weight: bold;"><span style="font-size: small; color: #003300;">el seu <span style="text-decoration: underline;"><span class="nolink">producte escalar és 0</span></span>:</span> <br /></span></span> <div align="center"><span style="color: #ff0000;"><span style="font-size: medium;"><span style="font-weight: bold;">x</span></span><span style="font-size: medium;"><sub style="font-weight: bold; color: #ff3300;">1·</sub></span><span style="font-size: medium;"><span style="font-weight: bold;">x</span><sub style="font-weight: bold; color: #ff3300;">2</sub><span style="font-weight: bold;"> + y</span><sub style="font-weight: bold; color: #ff3300;">1·</sub><span style="font-weight: bold;">y</span></span><span style="font-size: medium;"><sub style="font-weight: bold; color: #ff3300;">2</sub></span><span style="font-size: medium;"><span style="font-weight: bold;"> = 0</span></span></span></div> </div> <div style="text-align: justify;" align="justify"> </div> </td> </tr> </tbody> </table> </div> <p><span style="font-size: large;"><span style="font-weight: bold; color: #ff6600;"> </span></span></p>
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Thursday, 23 August 2018, 4:18 PM
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