Question

Доказать тождество!Плз очень срочно!

Answer 1

$log(8) + log(2) + log( frac{25}{4} ) = 2 \ log(8 times 2 times frac{25}{4} ) = 2 \ log(2 times 2 times 25) = 2 \ log(100) = 2 \ log( {10}^{2} ) = 2 \ 2 = 2$