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Jawaban paling cerdas!
2014-09-12T22:03:14+07:00
=2.5log3+3.5log2+1/2.2.5log5-2.5log2.3-5log2
(misalkan 5log3=a dan 5log2=b)
=2a+3b+1-2(5log2+5log3)-b
=2a+3b+1-2b-2a-b
=1-----jawaban B
1 5 1