Question

Si A = {4; 4; 5; 6; 7; 7} y B = {4; 4; 5}. Determina n(A U B)

Answer 1

Explicación paso a paso:

$a \: u \: \: b = (4.4.5.6.7) \\ n(a \: \: u \: \: b) = 4$