Oblicz logarytmy; a) [latex]log_{frac{1}{16}}frac{1}{216}[/latex] b) [latex]log_{frac{1}{2}}-log_{frac{1}{2}}3[/latex]

a) [latex]log_{frac{1}{16}}frac{1}{256}=[/latex]   [latex]log_{16^{-1}}16^{-2}=[/latex]   [latex]frac{-2}{-1}= 2[/latex] =====      

a) log_{1/16}(1/216)=log16(216)=log16(6^3)=3log16(6)=3log16(2)+3log16(3)=3/4+3log16(3)=3/4+log16(27)