Question

a)2
-3 =
b)(-2)-3 =
c) -2-3=

Answer 1

Resposta:

2)

$a) 2^{-3} =(\frac{1}{2})^{3}=\frac{1}{8}$

$b) (-2)^{-3} = (-\frac{1}{2} )^{3} = -\frac{1}{8}$

$c) -2^{-3} = -(\frac{1}{2})^{3} = -\frac{1}{8}$

Espero ter ajudado