Question

Sendo A = {1,2,3,4} e B = {1,3,4}, ⋃ é: *?
{1,4} = C
{1,3,4} = B
{1,2,3,4,1,3,4}
{1,2,3,4} = A
{2}​

Answer 1

Resposta:

U = união

a U b= {1,2,3,4}