Question

Di ketahui 3 log 5 = a dan 2 log 3 = b tentukan nilai 12 log 150

Answer 1

^2log 150 / ^2log 12
= ^2 log ( 2 x 3 x5^2) / ^2 log (2^2 x 3)
= (^2 log 2 + ^2 log 3 + ^2 log 5^2) / (^2log2^2 + ^2log3)
= (1+b+ 2ab)/(2+b)