Question

Jika ²Log3 = x dan ²Log5 = y
maka tentukan ²Log45 ?
please bantu dong.

Answer 1

LOgaritma

²log 3  = x
²log 5 = y
.
²log 45 = ²log (5 x 9) = ²log 5 + ²log 9
²log 45 = ²log 5 + 2. ²log 3 = y + 2x

Answer 2

2'log 3 = x
2'log 5 = y

2'log 45
= 2'log (3^2 × 5)
= 2'log 3^2 + 2'log 5
= 2x + y