Jika a dan b bilangan real positif hitunglah a. 4 log 32 b. 16 log 64

[tex]^4\log32=\dfrac{\log32}{\log4} \\ \\ =\dfrac{\log2^5}{\log2^2} \\ \\ =\dfrac{5\cdot\log2}{2\cdot\log2} \\ \\ =\dfrac{5}{2}\cdot1 \\ \\ =\dfrac{5}{2}[/tex]

[tex]^{16}\log64=\dfrac{\log64}{\log16}=\dfrac{\log4^3}{\log4^2}=\dfrac{3\cdot\log4}{2\cdot\log4}=\dfrac{3}{2}[/tex]