Question

Calcule as potências:
a) 4⁻² =
b) 4⁻³ =
c) 5⁻¹ =
d) 3⁻³ =
e) 10⁻² =
f) 10⁻³ =
g) 2⁻⁵ =
h) 7⁻¹ =
i) 1⁻¹⁸ =

Answer 1

Explicação passo-a-passo:

$a) \: {4}^{ - 2} = (\frac{1}{4} {)}^{2} = \frac{1}{16}$

$b) \: {4}^{ - 3} = ( \frac{1}{4} {)}^{3} = \frac{1}{64}$

$c) \: {5}^{ - 1} = \frac{1}{5}$

$d) \: {3}^{ - 3} = ( \frac{1}{3} {)}^{3} = \frac{1}{27}$

$e) \: {10}^{ - 2} = ( \frac{1}{10} {)}^{2} = \frac{1}{100}$

$f) \: {10}^{ - 3} = ( \frac{1}{10} {)}^{3} = \frac{1}{1000}$

$g) \: {2}^{ - 5} = ( \frac{1}{2} {)}^{5} = \frac{1}{32}$

$h) \: {7}^{ - 1} = \frac{1}{7}$

$i) \: {1}^{ - 18} = (\frac{1}{1} {)}^{18} = {1}^{18} = 1$