5 log 3.9 log akar 125.5 log 25 di bagi 2 log 16-2 log 4
Matematika
masriah3
Pertanyaan
5 log 3.9 log akar 125.5 log 25 di bagi 2 log 16-2 log 4
1 Jawaban
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1. Jawaban arsetpopeye
(5log3 . 9log√125 . 5log25)/(2log16 - 2log4)
= (5log3 . 3^2log5^3/2 . 5log5^2) / (2log2^4 - 2log2^2)
= (5log3 . (3/2)/2 . 3log5 . 2 . 5log5) / (4 . 2log2 - 2 . 2log2)
= (3/4 . 2) / (4 - 2)
= (3/4 . 2) / 2
= 3/4