jika 8 log 5=x maka 5 log 4=

Kelas 10 Matematika
Bab Logaritma

^ = pangkat

^8log 5 = x
^(2^3)log 5 = x
(1/3) . ²log 5 = x
²log 5 = 3x

^5log 4
= 1/^4log 5
= 1/(^(2²)log 5)
= 1/((1/2) . ²log 5)
= 1/(3x/2)
= 2/(3x)