Question

Determine todos os subconjuntos de X

Answer 1

*RESPOSTA*

X = {a, b, c, d} com: a) 1 elemento: {a}, {b}, {c}, {d}. b) 2 elementos: {a, b}, {a, c}, {a, d}, {b, c}, {b, d}, {c, d}. c) 3 elementos: {a, b, c}, {a, c, d}, {a, b, d}, {b, c, d}