PROVES
[Exercici 1] .
. . . .. . ......
[Exercici 2] ..
...........
[Exercici 3] .
[Exercici 4] .
. . . .. . ......
[Exercici 5] ..
...........
[Exercici 6] .
[Exercici 7] .
. . . .. . ......
[Exercici 8]7]
. . . . ..
[Exercici 9]7
[Exercici 10]. . . .. ........
[Exercici 11]
. . . . . .
[Exercici 12]