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Test-Lidia
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<table style="background-image: none; color: #003300; border: 4px solid #003300; float: none; text-align: left; vertical-align: top; margin-left: auto; margin-right: auto; background-color: #ffffcc; width: 400px;" border="4" frame="void" rules="none"> <tbody> <tr style="font-weight: bold; color: #003300;" align="center"> <td style="background-color: #003300; background-image: none; color: #ffffcc; border-color: #003300; border-width: 4px; vertical-align: top; border-style: solid;" valign="top" width="NaNpx"><span style="font-size: large;" data-mce-mark="1">Propietats dels logaritmes</span></td> </tr> <tr style="font-weight: bold; color: #003300;" align="justify"> <td style="text-align: left;" valign="top" width="NaNpx"> <p><span style="color: #003300;"><strong><span style="font-size: medium;">log<sub>a</sub> x + log<sub>a</sub> x = log<sub>a</sub> x·y</span></strong></span></p> <p><span style="color: #003300;"><strong><span style="font-size: medium;">log<sub>a</sub> x - log<sub>a</sub> x = log<sub>a</sub> x/y</span></strong></span></p> <p><span style="color: #003300;"><strong><span style="font-size: medium;">y log<sub>a</sub> x = log<sub>a</sub> x<sup>y</sup></span></strong></span></p> <p><span style="color: #003300;"><strong><span style="font-size: medium;">log<sub>a</sub> a = 1, <strong><span>log<sub>a</sub> a<sup>2</sup> = 2, <strong><span>log<sub>a</sub> a<sup>3</sup> = 3...</span></strong><br /></span></strong></span></strong></span></p> <p><span style="color: #003300;"><strong><span style="font-size: medium;">log<sub>a</sub> 1 = 0</span></strong></span></p> <p><span><span>«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msub mathcolor=¨#003300¨»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»log«/mi»«mi mathvariant=¨bold¨»a«/mi»«/msub»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»x«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»=«/mo»«mfrac mathcolor=¨#003300¨»«mi mathvariant=¨bold¨»lnx«/mi»«mi mathvariant=¨bold¨»lna«/mi»«/mfrac»«/math»</span></span></p> </td> </tr> </tbody> </table>
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