Yang nomer 3 gimana ya... tolong bantuanya

Jawab :

(1/2)'log 5 . 5'log 4 . 2'log (1/8) . (5'log 25)²
= (2^-1)'log 5 . 5'log 2^2 . 2'log 2^-3 . (5'log 5^2)²
= -1 . 2 . - 3 . 2'log 2 . 2²
= 6 . 4
= 24 ✔