(log_3(7)/log_3(5))*(log_7(5)/log_2(5)) - log_5(10)

Question

(log_3(7)/log_3(5))*(log_7(5)/log_2(5)) - log_5(10)

Answer 1

Lg3(7)/lg3(5)*lg7(5)/lg2(5)-lg5(10)=lg5(7)*lg5(2)/lg5(7)-lg5(10)=lg5(2)-lg5(2)-1=-1
отметь как лучшее.