Question

a) (-1/5)^2-(-1/2)^2+(-1/3)^2
b) (+2/3)^2×(+2/3)^3
​

Answer 1

Explicação:

b) (-3/4) - (+1/3) + (+2/7) = mmc = 84

- 3 - 1 + 2 = - 63 - 28 + 24 ==> - 67

4 3 7 84 84

c) (-3/4) - (1/2) + (1/5) - (+2/3) = 60

- 3 - 1 + 1 - 2 = - 45 - 30 + 12 - 40 ==> - 103

4 2 5 3 60 60

d) (5/3) - (+1/4) + (2/7) = mmc = 84

5 - 1 + 2 = 60 - 21 + 24 ==> 63

3 4 7 84 84

e) (5/3) + (-1/2) - (2/3) = mmc = 6

5 - 1 - 2 = 10-5-4 ==> 1

3 2 3 6 6

f) (-3/5) - (-2/3) + (1/2) = mmc = 30

- 3 + 2 + 1 ==> - 18 + 20 + 15 ==> 17

5 3 2 30 30

g) (1/3) · (-1/2) (3/5)= - 3

30

h) (-1/3) · (-2/5) : (-1/2) =

(-1) · (-2) x (-2) = - 4

3 5 1 15

ESPERO TER AJUDADO!!! BONS ESTUDOS