How do you evaluate $Log 4 – log 400,000$ ?

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Answer 1 · 2016-06-02T16:22:42

$-5$

Use $log ab = log a + log b, log a^n = n log a and log 10 =1$

Here, $log 4 - log 200000=log 4 - log(4X 100000)$

$=log 4 - (log 4 + log !0^5)$

$= -5 log 10 = -5 (1) = -5$

How do you evaluate Log 4 – log 400,000Log 4 – log 400,000?