Question

gente socorro

Dados X=2⁰-3⁻¹,y=5⁰-2⁻¹ez=4⁰+¹ Calcule o valor de:
A) x+y
B) x-y
C) x.z
D) y÷z

Alguém sabe as respostas?

Answer 1

x = 2⁰-3⁻¹ = 1-(1/3) = (3-1)/3 = 2/3

y = 5⁰-2⁻¹ = 1-(1/2) = (2-1)/2 = 1/2

z = 4⁰+¹ = 4¹ = 4

a)

x+y = (2/3)+(1/2) = (4+3)/6 = 7/6

b)

x-y = (2/3)-(1/2) = (4-3)/6 = 1/6

c)

xz = (2/3).4 = (2.4)/3 = 8/3

d)

y/z = (1/2)/4 = (1/2).(1/4) = 1/8

Answer 2

Resposta:

Explicação passo-a-passo:

2^0=1

-3^-1=-1/3

1-1/3=2/3

5^0=1

-2^-1=-1/2

1-1/2=1/2

4^0=1

1=1

1+1=2

A)  2/3 + 1/2=7/6

B)  2/3-1/2=1/6

C)  2/3×2=4/3

D)  1/2÷1=1/2

Espero ter-te ajudado :)