Log Akar Pangkat 3 dari 225
Jika log 2 = 0,301 dan log 3 = 0,477.
log ∛225 = log (225)1/3 = log (15²)1/3
= 2/3 log 15
= 2/3 log (30/2)
= 2/3 {log 10(10.3/2)}
= 2/3 {log 10 + log 3 - log 2}
= 2/3 {1 + 0,477 - 0,301}
= 2,352 : 3 = 0,784