Jawabanmu

2014-03-25T17:09:54+07:00
2 log 72 - 2 log 45 + 2 log 5 = 2 log (72/45x5) = 2 log 8 = 3
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Jawaban paling cerdas!
2014-03-25T17:21:11+07:00
2 log (72/45*5) = 2 log 8 = 2 log 2^3 = 3
Ket : sifat logaritma jika ditambah = dikali, jika dikurangi = dibagi
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