September 2018 2 37 Report
Tolong dikerjakan..
Diketahui ^{2}log 3 = a dan ^{3}log 7 = b. Nilai ^{9}log 28 =....
A. \frac{2 + a}{ab}
B.  \frac{2 + ab}{2a}
C.  \frac{1 + b}{2a}
D.  \frac{2 + b}{2a}
E.  \frac{2 + b}{a}

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