Răspunsuri

2014-11-04T19:44:57+02:00
A = 2/3 * b
a - 1/4 = b
4a -1 = b
   4
a = 2 * (4a - 1)
      3       4
a = 8a - 2
         12
 a = 4a - 1
          6
6a = 4a - 1
2a = - 1 
a = - 1/2
4a - 1 = 4 b
4 * (- 1/2) - 1 = 4b
- 4/2 - 1 = 4b
- 4 - 2 = 8b
8b = - 6
b = - 6/8
b = - 3/4

1 5 1