Question

Determinati numerele naturale x si y astfel incat sa aiba loc egalitatile :
a) {1,x,3} U {2,3,y} = {1,2,3}
b) {1,y,3} U { x,3,5}= {1,2,3,4,5}
c) {1,x,y} intersectat{ x,2,3}={2,4}
d) {1,x,3/ {2,3,y}=Ф

Answer 1

a) x=2

b) y=2 si x=4 sau exclusiv y=4 si x=2

c)x=4 y=2 sau x=2, y=4

d) x=2 si y=1