Question

Repede! Va rog! Dau coroană! ​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

(1/2)^6 : (1/2)^3 + (1/2)^3 = (1/2)^3 + (1/2)^3 = 1/8 + 1/8 = 2/8 = 1/4

b)

1 - 1/3 - 1/9 - 1/27 = 27/27 - 9/27 - 3/27 - 1/27 = 14/27

c)

1/3 + 1/2 = 2/6 + 3/6 = 5/6

(5/6)^2 = 25/36

25/36 : 5/12 = 25/36*12/5 = 5/3

d)

1 + 1/3 = 3/3 + 1/3 = 4/3

1 - 1/3 = 3/3 - 1/3 = 2/3

(4/3)^2 : (2/3)^2 = 16/9 : 4/9 = 16/9*9/4 = 4