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 <question type="category"><category><text>1MA 01. TRIGONOMETRIA/1MA.01.3 Relació entre raons</text></category></question>
 
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      <text>1MA.01.3.50DT RAONS DE L'ANGLE COMPLEMENTARI</text>
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<td style="text-align: center; background-color: #003300;" align="center" valign="middle"><span style="font-size: large; color: #ffff99;">Raons de l'angle complementari</span></td>
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<p style="text-align: center;"><span style="color: #003300;"><strong><span style="font-size: small;">sin (90º-a) = cos a</span></strong></span></p>
<p style="text-align: center;"><span style="color: #003300;"><strong><span style="font-size: small;">cos(90º - a) = sin a</span></strong></span></p>
<p style="text-align: center;"><span style="color: #003300;"><strong><span style="font-size: small;">tg (90º - a) = 1/tg a</span></strong></span></p>
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