Question

Tolong dijawab yahh

diket : 4 log 5 = m
5 log 7 =n
tentukan nilai 20 log 28 ?

Answer 1

4 log 28 / 4 log 20 = 4^log 4 + 4^log7/ 4^log4 + 4^log 5 = 1 + 5^log7/5^log 4 / 1+m= 1 +n/1/m / 1+n =1 + nm / 1 + n