Question

Someone Give me a step by step answer

Answer 1

Answer:

$\frac{\sqrt[3]{ ({343})^{ - 2} } }{ \sqrt[4]{81} } \\ = \frac{ {343}^{ - 2 \times \frac{1}{3} } }{3} \\ = \frac{ ({ \sqrt[3]{343}) }^{ - 2} }{3} \\ = \frac{ {7}^{ - 2} }{3} \\ = \frac{1}{ {7}^{2} \times 3}$

$= \frac{1}{49 \times 3} \\ = \frac{1}{147}$

Hope this helps