Răspuns:
Explicație pas cu pas:
2<x≤7 A={3,4,5,6,7}
4≤3x+1≤16
4≤3x+1 3≤3x x≥1
3x≤15 x≤5 B={1,2,3,4,5}
A∪B∪C=
x=p²+1 p≤3
p=0 x=1
p=1 x=2
p=2 x=5
p=3 x=10 C={1,2,5,10}
A∪B∪C={1,2,3,4,5,6,7,10}
A∩B∩C={5}
A\B∩C={6,7}∩{1,2,5,10}=∅
(B\C)∪(C\A)={3,4}∪{1,2,10}={1,2,3,4,10}
