Jawabanmu

2014-09-02T19:02:11+07:00
2log3 = 2log5    2log5 = 2log7 2log90=2log92
2014-09-02T19:04:51+07:00
2log 90 = 2 log 9x10 = 2 log 9+ 2log 5+ 2 log 2 = 2m + n + 1