Jak obliczyć ? -log 0.015

[latex]-log (0,015)=-log(1,5*10^{-2})=log(1,5*10^{-2})^{-1}=\ =log(frac{3}{2}*10^{-2})^{-1}=log (frac{2}{3}*10^2)=log (2/3)+log(10^2)=\ oxed{logfrac{2}{3}+2}approx -0,1761+2=1,8239[/latex] [latex]Wzory:\ log_a b=ciff a^c=b\ log a=ciff 10^c=a\ klog_ab=log_ab^k\ log_a(xy)=log_ax+log_ay[/latex]

[latex]-log0.015 =log ( frac{15}{1000} )^{-1} = log( frac{1000}{15}) =\ log1000 - log15 = 3 - 1.1761 = 1.8239[/latex]