Question

va rog dau coroana plus multe puncte

Answer 1

Răspuns

Explicație pas cu pas:

25/36 + 9/16 = 100/144 + 81/144 = 181/144

181/12^2 = 181/144

181/144 : 181/144 = 1

___________

1/8 - 1/216 = 27/216 - 1/216 = 26/216 = 13/108

128-20 = 108

65 : 5 = 13

13/108 : 108/13 = 1

___________

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

1^2011 = 1

4/12 = 1/3

(1/3)^2 = 1/9

1 : 1/9 = 9

_____________

1/3 - 1/9 = 3/9 - 1/9 = 2/9

(2/9)^2 = 4/81

(1/3)^3 = 1/27

4/81 + 1/27 = 4/81 + 3/81 = 7/81

(1/3)^4 = 1/81

7/81 : 1/81 = 7