Jawabanmu

2014-09-03T20:25:26+07:00
5log4 * 4log3 = 5log3 || a * b = ab
4log3 = b || 3log4 = 1/b
5log3 = ab || 3log5 = 1/ab
3log5 + 3log4 = 3log(4*5) = 3log20 || 1/b + 1/ab = a/ab + 1/ab = a+1/ab