jika ²log 3 = a dan ³log 5 = b maka6log 15=
Matematika
ririzz4
Pertanyaan
jika ²log 3 = a dan ³log 5 = b maka6log 15=
1 Jawaban
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1. Jawaban desyyanniioszahm
6 log 15 =
= (³log 15) / (³log 6)
= ³log (3 × 5) / ³log (2 × 3)
= (³log 3 + ³log 5) / (³log 2 + ³log 3)
= (³log 3 + ³log 5) / ( 1/²log 3 + ³log 3)
= (1 + b) / (1/a + 1)
= (a + ab) / (1 + a)