Question

Jika log2=x dan log9=y, maka log(12)^2=…

Answer 1

Log 9 = y
log 3^2 = y
2 . log 3 = y
log 3 = y/2

log (12)^2
= 2 . log 12
= 2 . log (2^2 . 3)
= 2 . (log 2^2 + log 3)
= 2 . (2 . log 2 + log 3)
= 2 . (2 . x + y/2)
= 2 . (2x + y/2)
= 4x + y