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2014-08-03T10:01:12+07:00
= 3log8.2log81
= 3log2^3 . 2log3^4
= 3 . ³log2 . 4 ²log3
= 3 . 4 . ³log2 . ²log3
= 12 . 1
= 12
3 3 3
2014-08-03T11:07:29+07:00
3log8.2log81=³log 2³.2 log 3⁴
=3.4 ³log 2.²log3
=12.³log 3
=12.1=12