Resposta :
Explicação passo-a-passo:
[tex] U = \{0,1,2,3,...,9 \} \\ A = \{0,2,3,5,6 \} \\ B = \{1,2,5,6,8,9 \} \\ C = \{0,2,3,6,9 \} \\ D = \{1,4,7,8 \} \\ a) \: A \: \cup \: B = \bf \green{ \{0,1,2,3,5,6,8,9 \} }\\ b) \: A \: \cap \: C = \bf \green{\{ 0,2,3,6 \}} \\ c) \: B - D = \bf \green{ \{4,7 \}} \\ d) \: B = \bf \green{ \{1,2,5,6,8,9 \}} \\ e) \: A \: \cap \: B = \bf \green{ \{2,5,6 \}} \\ f) \: A \: \cap \: (B \: \cup \: D) = \\ A \: \cap \: (B \: \cup \: D) = \{0,2,3,5,6 \} \: \cap \: \{1,2,4,5,6,7,8,9 \} \\ A\: \cap \: (B \: \cup \: D) = \bf \green{\{2,5,6 \}} \\ \\ \Large\boxed{ \bf \blue{ \underline{Bons \: Estudos!}}}[/tex]