Question

Calcule as potências:

a)2³ = b) 16° = c) ( -4 )³ =

d) ( -5 )-²= e) 4-⁴=​

Answer 1

Olá!

$\\ { \large \displaystyle \sf {a) \: 2 {}^{3} = 2 \cdot2 \cdot2 = \boxed{ \pink { \: 8 \: }}}}$

${ \large \displaystyle \sf {b) \: 16{}^{0} = \boxed{ \pink { \: 1 \: }}}}$

${ \large \displaystyle \sf {c) \: ( - 4){}^{3} = }}$

${ \large \displaystyle \sf { ( - 4) \cdot( - 4) \cdot( - 4)= }}$

${ \large \displaystyle \sf { ( + 16)\cdot( - 4)= }}$

$\boxed{ \pink{ { \large \displaystyle \sf { - 64 }}}}$

${ \large \displaystyle \sf {d) \: ( - 5){}^{ - 2} = }}$

${ \large \displaystyle \sf { 5{}^{ - 2} = }}$

${ \large \displaystyle \sf { \frac{1}{5 {}^{2} } = }}$

${ \large \displaystyle \sf { \frac{1}{5 \cdot5} = }}$

$\boxed{ \pink{ { \large \displaystyle \sf { \: \frac{1}{25} \: }}}}$

${ \large \displaystyle \sf {e) \:4{}^{ - 4} = }}$

${ \large \displaystyle \sf { \frac{1}{4{}^{4} } = }}$

${ \large \displaystyle \sf { \frac{1}{4 \cdot4 \cdot4 \cdot4} = }}$

$\boxed{ \pink{ { \large \displaystyle \sf { \: \frac{1}{256} \: }}}}$