jika 2log 3 = a maka 6log 8 adalah

Mapel Matematika
Bab Logaritma

2log3 = a
3log2 = 1/a

6log8
= 3log6 / 3log8
= 3log(3x2) / 3log(2^3)
= (3log3 + 3log2) / 3.3log2
=( 1 + 1/a) / 3(1/a)
= (a + 1)/a / 3/a
= a + 1 / 3 (E)