2log (5x+1) - 2log (3x-1) = 1
Matematika
mewell
Pertanyaan
2log (5x+1) - 2log (3x-1) = 1
2 Jawaban
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1. Jawaban alvarezi
²log (5x+1)/(3x-1) = 1
(5x+1)
2^{1} = ---------------
(3x-1)
2(3x-1) = 5x +1
6x -2 = 5x + 1
x = 3 -
2. Jawaban ekamiaww
[tex]^2log(5x+1)-^2log(3x-1)=1 \\ ^2log \frac{5x+1}{3x-1} =^2log2 \\ \frac{5x+1}{3x-1}=2 \\ 6x-2=5x+1 \\ 6x-5x=1+2 \\ x=3[/tex]