Question

Решите................

Answer 1

$log_{ frac{1}{5}}9+2log_{ frac{1}{5}} frac{5}{3}=log_{ frac{1}{5}}9+log_{ frac{1}{5}} (frac{5}{3})^2=log_{ frac{1}{5}}9+log_{ frac{1}{5}} frac{25}{9}=log_ frac{1}{5}(9* frac{25}{9})=$$log_ frac{1}{5}25=log_ {5^{-1}}5^2= frac{1}{-1}*2*log_55=-1*2*1=-2$