Question

...determine (A-C) U (C-B) U (A ∩ B ∩ C)

Answer 1

$A-C = \{a\}\\ C-B = \{a,e\}\\ A \cap B \cap C = \{a,c\}\\ (A-C)\cup\(C-B)\cup(A \cap B \cap C) = \{a\}\cup\{a,e\}\cup(\{a,c\})\\ (A-C)\cup\(C-B)\cup(A \cap B \cap C) = \{a,c,e\}$