Question

Represente em forma de radical

a)
${9}^{ - \frac{3}{5} }$
b)
${8}^{ -\frac{2}{3} }$

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Answer 1

9-³/⁵ = (1/9)³/⁵ = ⁵√(1/9)³

8-²/³ = (1/8)²/³ = ³√(1/8)²