Question

Лог 8/27 лог25 125
помогите срочно

Answer 1

Log 15 125=log 15 15²=2l0g15 15=2*1=2
log 8/27 2=1/log 2 8/27=1/log 2 (2/3)³
log 2 (2/3)³=3log2 2/3=3(log2 2-log2 3)=3(1-log2 3)
log 8/27 2=1/3(1-log2 3)