Question

dados os conjuntos A={p,q ,r} ={r,s,t} e c= {p,s,t}, determine os conjuntos:

a) AuB c)BuC

b)AuC

Answer 1

$1) \ AUB=\{p,q,r,s,t\}\\ \\ 2) \ BUC=\{p,r,s,t\}\\ \\ 3) \ AUC=\{p,q,r,s,t\}$