1.

If a÷b=(9/7)^-3÷(3/7) find (a/b)^2​

Answer» \frac{a}{b} = (\frac{9}{7})^{ - 3} \div \frac{3}{7}
\frac{a}{b} = (\frac{9}{7})^{ - 3} \times \frac{7}{3}
\frac{a}{b} = (\frac{7}{9})^{ 3} \times \frac{7}{3}
\frac{a}{b} = (\frac{{7}^{3} }{ ({3}^{2})^3 }) \times \frac{7}{3}
\frac{a}{b} = \: \frac{{7}^{4}}{ {3}^{7} }
(\frac{a}{b})^{2} = \: \frac{{7}^{8}}{ {3}^{14} }


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