yuk guy dijawab biar koinnya nambah

[tex] \frac{p {}^{ - 2} q {}^{2} r {}^{3} }{(16p {}^{ 5} q {}^{ - 3} r {}^{ - 6}) {}^{ - 1} } \\ = \frac{p {}^{ - 2} q {}^{2} r {}^{3} }{ \frac{1}{16} p {}^{ - 5} q {}^{ 3} r {}^{ 6}} \\ = 16 \: p {}^{ - 2 + 5} q {}^{2 - 3} r {}^{3 - 6} \\ = 16 \: p {}^{3} q {}^{ - 1} r {}^{ - 3} \\ = 16 \times (\frac{1}{8} ) {}^{3} \times 2 {}^{ - 1} \times ( - \frac{1}{4} ) {}^{ - 3} \\ = 16 \times (\frac{1}{8} ) {}^{3} \times \frac{1}{2} \times ( - \frac{1}{4} ) {}^{ - 3} \\ = 16 \times 8 {}^{ - 3} \times 2 {}^{ - 1} \times - 4 {}^{3} \\ = 2 {}^{4} \times 2 {}^{3 \times - 3} \times 2 {}^{ - 1} \times - 4 {}^{3} \\ = 2 {}^{4} \times {2}^{ - 9} \times {2}^{ - 1} \times - 2 {}^{6} \\ = - (2 {}^{4 - 9 - 1 + 6} ) \\ = - (2 {}^{0} ) \\ = - 1[/tex]

Jadi, jawabannya B.