Jika 2 log 3 = a 3 log 5 = 6 Tentukan 8 log 25

Jawabannya 18/5 a,, caranya liat di gambar,,

²log 3 = a
³log 5 = b

²log 3 . ³log 5 = a.b
²log 5 = a.b

⁸log 25 = [tex] ^{2^{3} } log 5^{2} [/tex]
            = 2/3 . ²log 5
            = 2/3 .ab