Question

Se A = {x ∈ N | 3 ≤ x ≤ 7} e B = {x ∈ N | x ≤ 6}, então A∩B e A∪B são, respectivamente: * 1 ponto {0, 1, 2, 3, 4, 5, 6, 7} e {3, 4, 5, 6} {3, 4, 5, 6} e {0, 1, 2, 3, 4, 5, 6, 7} {0, 1, 2, 3, 4, 5, 6} e {3, 4, 5} {3, 4, 5} e {0, 1, 2, 3, 4, 5, 6} { 4, 5} e { 1, 2, 3, 4, 5, 6}

Answer 1

$\boxed{\begin{array}{l}\sf A=\{3,4,5,6,7\}~~B=\{0,1,2,3,4,5,6\}\\\sf A\cap B=\{3,4,5,6\}\\\sf A\cup B=\{0,1,2,3,4,5,6,7\}\end{array}}$