3log5×5log2×2log1/81

Materi Logaritma

Ingat sifat logaritma
^a log b × ^b log c = ^a log c, sehingga diperoleh,
^3 log 2 × ^2 log 1/81
= ^3 log 1/81
= ^3 log 1/3^4
= ^3 log 3^(-4)
= -4

Mudah-mudahan bisa membantu!