Question

calcular

a)(-7)-²
b)2-³
c)(-2)-³​

Answer 1

A)

$\\ \large{( - 7) {}^{ - 2} } =$

$\\ \large{7 {}^{ - 2} } =$

$\\ \large{ \frac{1}{7 {}^{2} } } =$

$\\ \large \boxed{ \red{ \frac{1}{49} }}$

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B)

$\\ \large{2 {}^{ - 3} } =$

$\\ \large{ \frac{1}{2 {}^{3} } } =$

$\\ \large \boxed{ \red{ \: \frac{1}{8} \: }}$

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C)

$\\ \large{( - 2) {}^{ - 3} } =$

$\\ \large - 2 {}^{ - 3} =$

$\\ \large{ - \frac{1}{2 {}^{3} } } =$

$\\ \large \boxed{ \red{ - \frac{1}{8} }}$

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Att, IzabelaCristina2006 ❤️ ♈