Question

выразить log через log???

Answer 1

Решение во вложении:

Answer 2

$1) : a = log_{3}(25 ) = frac{1}{ log_{25}(3) }$


$2) : : b = log_{25}(8)$

$3) : a times b = frac{1}{ log_{25}(3) } times log_{25}(8) = frac{ log_{25}(8) }{ log_{25}(3) } = \ \ = log_{3}(8) = 3 log_{3}(2) = frac{3}{ log_{2}(3) }$

Значит,
$a times b = frac{3}{ log_{2}(3) }$

$log_{2}(3) = frac{3}{ab}$

ОТВЕТ: 4