Question

determina reuniunea intersectia produsul cartezianal multimii formate din literele cuvintelor pirat capitan dunarean dau coroana

Answer 1

A={p, i, r, a, t}
B={c, a, p, i, t, a, n}
C={d, u, n, a, r, e, a, n}

A∩B∩C={a}
A∪B∪C={p, i, r, a, t, c, n, d, u, e}
PRODUSUL CARTEZIAN a multimilor A,B,C = (p,c,d) (p,a,d) (p,p,d) (p,i,d) (p,t,d) (p,a,d) (p,n,d) (i,c,d) (i,a,d) (i,p,d) (i,i,d) (i,t,d) (i,a,d) (i,n,d) (r,c,d) (r,a,d) (r,p,d) (r,i,d) (r,t,d) (r,a,d) (r,n,d) (a,c,d) (a,a,d) (a,p,d) (a,i,d) (a,t,d) (a,a,d) (a,n,d) (t,c,d) (t,a,d) (t,p,d) (t,i,d) (t,t,d) (t,a,d) (t,n,d) etc tot asa faci grupele de cifre