Question

coloquem a conta por favor!​

Answer 1

Resposta:

$e) \: { (- 2)}^{ - 2} = \frac{1}{ { - 2}^{2} } = \frac{1}{4 } \\ f) \: - {( - 4)}^{3} = \frac{1}{ {4}^{3} } = \frac{1}{64} \\ g) \: (\frac{1}{2} ) ^{ - 2} = \frac{1}{ \frac{1 }{2} ^{2} } = \frac{1}{ \frac{1}{4} } = 1 \times \frac{4}{1} = \frac{4}{1} \\ h) \: (\frac{2}{3} ) ^{ - 1} = \frac{1}{ \frac{2}{3} ^{1} } = \frac{1}{ \frac{2}{3} } = 1 \times \frac{3}{2} = \frac{3}{2}$

Prontíssimo!!