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Pertanyaan

Nilai dari 2 lo g 12 − 2 lo g 24 + 2 lo g 16 = ....

  1. negative 3

  2. negative 2

  3. negative 1

  4. 2

  5. 3

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Y. Laksmi

Master Teacher

Mahasiswa/Alumni Universitas Negeri Semarang

Jawaban terverifikasi

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Pembahasan

Gunakan space sifat minus sifat space logaritma space berikut space colon  log presuperscript straight a space straight a to the power of straight n equals straight n  log presuperscript straight a space straight b space plus space log presuperscript straight a space straight c space equals space log presuperscript straight a space bc  log presuperscript straight a space straight b space minus space log presuperscript straight a space straight c space equals space log presuperscript straight a space straight b over straight c    maka space colon  log presuperscript 2 space 12 minus log presuperscript 2 space 24 plus log presuperscript 2 space 16 equals log presuperscript 2 fraction numerator 12.16 over denominator 24 end fraction  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals log presuperscript 2 space 8  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals log presuperscript 2 space 2 cubed  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 3

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Nilai dari 3 lo g 27 + 3 lo g 6 − 3 lo g 2 adalah ...

2

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Jawaban terverifikasi

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