Question

(-5/7)^3•(-7/3)^3 ..............​

Answer 1

Ответ:

$( - \frac{5}{7}) {}^{3} \times ( - \frac{7}{3}) {}^{3} \\ - {( \frac{5}{7} )}^{3} \times ( - ( \frac{7}{3} ) {}^{3} ) \\ ( \frac{5}{7} \times \frac{7}{3} ) {}^{3} \\ (5 \times \frac{1}{3} ) {}^{3} \\ ( \frac{5}{3}) {}^{3} \\ = \frac{125}{27}$