jika ²log 27. 9log 5. ²5 log 1/16 adalah

[tex] {}^{2} log27 \times {}^{9} log5 \times {}^{ {5}^{2} } log \frac{1}{16} \\ {}^{2} log {3}^{3} \times {}^{ {3}^{2} } log5 \times {}^{ {5}^{2} } log \frac{1}{16} \\ 3 {}^{2} log3 \times \frac{1}{2} {}^{3} log5 \times \frac{1}{2} {}^{5} log \frac{1}{16} \\ 3 \times \frac{1}{2} \times \frac{1}{2} \times {}^{2} log \frac{1}{16} \\ \frac{3}{4} \times ( {}^{2} log1 - {}^{2} log16) \\ \frac{3}{4} \times (0 - 4) \\ \frac{3}{4} \times - 4 \\ - 3[/tex]