Răspunsuri

2014-09-29T15:08:08+03:00
X ∈ {1,2,3,4,5,6,7,8,9} ⇒9 cazuri
y ∈ {0,1,2,3,4,5,6,7,8,9} ⇒10 cazuri
z ∈{0,1,2,3,4,5,6,7,8,9} ⇒ 10 cazuri
⇒ Avem 29 de cazuri.
1 5 1