Question

плиз, решите 3 любых примера

Answer 1

$1.;log_{frac16}36=log_{6^{-1}}6^2=frac2{-1}log_66=02cdot1=-2\2.;9^{2log_35}=left(3^2right)^{2log_35}=3^{4log_35}=3^{log_35^4}=3^{log_3625}=625\3.;log_xfrac17=-1\log_x7^{-1}=-1\-log_x7=-1\log_x7=1\x^1=7\x=1\4.;log_{12}2+log_{12}72=log_{12}(2cdot72)=log_{12}144=log_{12}12^2=2\5.;log_{11}sqrt[3]{121}=log_{11}121^{frac13}=frac13log_{11}(11)^2=frac13cdot2=frac23$