given-that-log-2-0-3-show-that-log-5-0-7-

Question Number 9333 by j.masanja06@gmail.com last updated on 30/Nov/16

given that \log 2 = 0.3 . show that \log 5 = 0.7

Answered by mrW last updated on 30/Nov/16

2 \times 5 = 10

\log (2 \times 5) = \log 10 = 1

\log 2 + \log 5 = 1

\log 5 = 1 - \log 2 = 1 - 0.3 = 0.7

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