Question

ALGUEM PODE ME AJUDAR COM A LETRA E POR FAVOR?

Answer 1

Resposta:

a) -27

b)-32

c)-36

d)-3

4

Explicação passo-a-passo:

3×3×3=-27

2×2×2×2×2=-32

6×6=-36

3/-1=-3

4 4

espero ter ajudado

Answer 2

Resposta:

a)

$\sf 3^{-3} = \left(\dfrac{1}{3} \right)^3 = \dfrac{1}{3} \times \dfrac{1}{3} \times \dfrac{1}{3} = \dfrac{1}{27}$

b)

$\sf (-2)^{-5} = \left( -\dfrac{1}{2}\right)^5 = \left( -\dfrac{1}{2}\right) \times \left( -\dfrac{1}{2}\right) \times \left( -\dfrac{1}{2}\right) \times \left( -\dfrac{1}{2}\right) \times\left( -\dfrac{1}{2}\right) = -\dfrac{1}{32}$

c)

$\sf 6^{-2} = \left( \dfrac{1}{6}\right)^2 = \dfrac{1}{6} \times \dfrac{1}{6} = \dfrac{1}{36}$

d)

$\sf 2^{-4} = \left( \dfrac{1}{2}\right)^4 = \dfrac{1}{2} \times \dfrac{1}{2} \times \dfrac{1}{2} \times \dfrac{1}{2} = \dfrac{1}{16}$

e)

$\sf \left(\dfrac{3}{4} \right)^{-1} = \left(\dfrac{4}{3} \right)^1 = \dfrac{4}{3}$

Explicação passo-a-passo: