Question

1. Calcule o valor das potencias


a)
$(-\frac{2}{5} ) {}^{2}$
b)
$( - \frac{11}{ \: 2} ) {}^{3}$
c)
$( + \frac{1}{3}) {}^{.}$
d)
$( + \frac{1}{2}) {}^{5}$
​

Answer 1

꧁Hello, how are you?꧂

$a) \: \: \: ( - \frac{2}{5}) {}^{2} \\ \\ ( \frac{2}{5} ) {}^{2} \\ \\ \frac{2 {}^{2} }{5 {}^{2} } \\ \\ \frac{4}{5 {}^{2} } \\ \\ \frac{4}{25}$

$b) \: \: \: ( - \frac{11}{2})^{3} \\ \\ - ( \frac{11}{2} ) {}^{3} \\ \\ - \frac{11 {}^{3} }{2 {}^{3} } \\ \\ - \frac{1331}{2 {}^{3} } \\ \\ - \frac{1331}{8}$

$c) \: \: ( + \frac{1}{3} ) \\ \\ 3 {}^{1}$

$d) \: \: ( + \frac{1}{2} ) {}^{5} \\ \\ \frac{1 {}^{5} }{2 {}^{5} } \\ \\ \frac{1}{2 {}^{5} } \\ \\ \frac{1}{32}$

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