Question

Dado o conjunto D={0,1,2,3,4,6,7}, A={0,2,5}, B={1,3,6} e E={1,4,7} determine:

(D-B) intersecção (E-A)

Answer 1

$D = \left \{ 0;1;2;3;4;6;7 \right \} \\ \\ A = \left \{ 0;2;5 \right \} \\ \\ B = \left \{ 1;3;6 \right \} \\ \\ E = \left \{ 1;4;7 \right \}$


$D-B = \left \{ 0;2;4;7 \right \} \\ \\ E-A = \left \{ 1;4;7 \right \} \\ \\ \boxed{(D-B)\cap (E-A) = \left \{ 4;7 \right \}}$