Plis bantu kk

<p>Diket :&nbsp;</p><p>&nbsp;⁸ log 3 = a</p><p>&nbsp;³ log 5 = b</p><p>Ditanya :&nbsp;</p><p>⁶ log 15</p><p>Jawab :&nbsp;</p><p>Dengan menggunakan sifat-sifat logaritma maka diperoleh :&nbsp;</p><p>⁸ log 3 = a , dapat diubah menjadi :</p><p>2³ log 3¹= a</p><p>1/3 ²log 3 = a</p><p>²log 3 = 3a</p><p>&nbsp;</p><p>³ log 5 = b</p><p>&nbsp;</p><p>⁶log 15 =(³log 15) / (³log 6)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = (³log (3x5)) / (³log (2x3))</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = (³log 3 + ³ log 5) / &nbsp;(³log 2 + ³log 3)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = (1+b) / ((1\3a) + 1)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 3a(1+b) / 3a + 1 (B)</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p>