1.

simplify (-5/7)³÷ (-7/5)³

Answer» \( (\frac{-5}{7})^3 \div (\frac{-7}{5})^3=\frac{(-5)^3 \times 5^3}{7^3 \times (-7)^3} \)

\( (\frac{-5}{7})^3 \div (\frac{-7}{5})^3=\frac{(-1)^3 \times 5^6}{(-1)^3 \times 7^6}=(\frac{5}{7})^6=0.1328 \)


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