Question

Помогите плииз) срочно надо..

Answer 1

$1)log_{3}135-log_{3}20+2log_{3}6=log_{3}135-log_{3}20+log_{3}6^{2}=log_{3}\frac{135*36}{20}=log_{3}243=log_{3} 3^{5}=5log_{3}3=5$

$2)log_{8}log_{14}196-\frac{2}{5}log_{5}125=log_{8}log_{14}14^{2}-\frac{2}{5}log_{5}5^{3}=log_{8}2-\frac{2}{5}*3=log_{2}2^{\frac{1}{3}}-\frac{6}{5}=\frac{1}{3}-\frac{6}{5}=\frac{5-18}{15}=-\frac{13}{15}$

Answer 2

Ответ: во вложении Объяснение: