Considere os conjuntos A = { 1, 2, {2}, 3, ∅} e B = {1,3} complete as lacunas usando os símbolos adequados: a) 3 _____A b) 1 _____B c) ∅_____A d) 4...

Considere os conjuntos A = { 1, 2, {2}, 3, ∅} e B = {1,3} complete as lacunas usando os símbolos adequados:
a) 3 _____A
b) 1 _____B
c) ∅_____A
d) 4_____A
e) B_____A
f) {1,4} _____A
g) ∅ ____B