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³log27+^5log5
=3+1
=4
³log27+^5log√5
=3+^5log(5^½)
=3+1/2.^5log5
=3+1/2.1
=3+1/2
=6/2+1/2
=7/2 atau 3 1/2 atau 3,5
^(pangkat)