Resposta :
[tex]\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}}[/tex]
[tex]\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}}[/tex]