Question

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Answer 1

Explicação passo-a-passo:

7)

A)

$- ( \dfrac{1}{8} ) {}^{2}$

-1/64

B)

$( - \dfrac{1}{8} ) {}^{2}$

1/64

C)

${3}^{ - 2}$

$\dfrac{1}{3 {}^{2} }$

1/9

8)

A)

$3 {}^{ \frac{4}{5} } = > \sqrt[5]{3 {}^{4} }$

B)

$64 {}^{ \frac{1}{2} } = > \sqrt[2]{64 {}^{1} }$

C)

$25 {}^{ \frac{1}{2} } = \sqrt[2]{25 {}^{1} }$