Question

49.Calcule no caderno

a) (5/3)² b) (7/5)² c) (1/5)² d) (3/4)²

e) (5/2)⁰ f) (³1/2)¹ ​

Answer 1

Resposta:

) Calcular as potências

a) (-5)⁻² = (1/-5)^2= 1/25

b) (-3)⁻⁴ = (1/-3)^4= 1/-27

c) (-2)⁻⁵ = (1/-2)^5= 1/25

d) (-5)⁻³ = (1/-5)^3= 1/-125

e) (-1)⁻⁴ = (1/-1)^4= 4/1

f) (-1)⁻⁵ = (1/-1)^5= 5/-1

6) Calcule as potências

a) (3/7)⁻² = (7/3)^2= 49/9

b) (2/5)⁻¹ = (5/2)^1= 5/2

c) (1/3)⁻³ = (3/1)^3= 9/1

d) (-5/4)⁻³ = (4/-5)^3= 64/-125

e) (-1/3)⁻² = (3/-1)^2= 9/1

f) (-2/5)⁻³ = (5/-2)^3= 125/-8

7)Calcule:

a) (3/2)⁻² = (2/3)^2= 4/9

b) (1/2)⁻³ = (2/1)^3= 8/3

c) (2/3)⁻² = (3/2)^2= 9/4

d) (-1/4)⁻² = (4/-1)^2= 16/1

e) (5/2)⁻³ = (2/5)^3= 8/125

Explicação passo a passo: