Jika 2log3 = a dan 2log5 = b , maka log 45 adalah Tolong dijawab yaa

Kelas 10 Matematika
Bab Logaritma

log 45 = ²log 45 / ²log 10
log 45 = (²log (9 . 5)) / (²log (2 . 5))
log 45 = (²log 9 + ²log 5) / (²log 2 + ²log 5)
log 45 = (²log 3² + b)/(1 + b)
log 45 = (2 . ²log 3 + b)/(b + 1)
log 45 = (2a + b)/(b + 1)