Jawabanmu

2014-09-03T14:09:37+07:00
2log3=a, log3=alog2
3log5=b, log5=blog3

Cari:
3log45
= log45/log3
= log5.3.3/log3
= log5+log3+log3/log3
= blog3+log3+log3/log3
= log3(b+1+1)/log3
= b+2