Tentukan nilai logaritma diatas ​

Jawab:

C

Penjelasan dengan langkah-langkah:

a = 7log2

b = 2log3

6log98 = …?

= 6log98

= log98 / log6

= (log2 + 2 x log7) / (log2 + log3) [depan kasi log 7]

= (7log2 + 2) / (7log2 + 7log3)

= (a + 2) / (a + ab) <== ab = 7log2 x 2log3 = 7log3

= (a+2) per a(b+1) [C]