Question

1) marque a alternativa correta: dados os conjuntos a={0,3,4,5,6,7,8} e b={2,4,5,6,9},determine AuB:
a) {0,2,3,4,5,6,7,8,8}
b) {0,2,3,4,5,7,8,9}
c) {2,3,4,5,7,9,8}
d) {2,3,4,5,7}
e) {4,5,6}
2) marque a alternativa correta: dados os conjuntos A={a,b,c,d,e,f,g} e B={b,d,g,h,i},Determine A-B:
A) {a,b,d,e}
B) {a,b,d,i}
C) {a,c,e,f}
D) {a,c,e,i}
E) {a,b,c,d}

Answer 1

a={0,3,4,5,6,7,8} e b={2,4,5,6,9}

AUB = {0,2,3,4,5,6,7,8,9}
Alternativa B

A={a,b,c,d,e,f,g} e B={b,d,g,h,i}

A - B
{a,b,c,d,e,f,g} - {b,d,g,h,i}
{a,c,e,f}
Alternativa C