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Log problem?

If log8 M = (log5 7 / log5 8), then M = ???

Please give an in-depth solution.

2 Answers

Relevance
  • 5 years ago
    Favorite Answer

    M = 7

    Note that log(base a) b = [log(base c) b / log(base c) a]

  • Anonymous
    5 years ago

    Loga_b = (logc_a)/(logc_b)

    M=7

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