Question

Cum rezolvam log in baza 5 din 30 minus log in baza 25 din 36?
Multumesc

Answer 1

$log_{5}30- log_{25}36= log_{5}30- log_{5^2}6^2= log_{5}30- log_{5}6= log_{5} \frac{30}{6}= \\ = log_{5}5=1$