Answer to Question #138759 in Algebra for Cameron Foster

Question #138759
1. Please represent the following using Venn Diagrams.
(a) (B ∪ C) ∩ A
(b) (B ∩ C)' ∩ A
(c) (A ∪ B) ∩ (A ∪ C)
(d) (A ∪ B)'− C
1
Expert's answer
2020-10-19T15:42:06-0400

Explanations & Calculations


  • Step by step to the final Venn diagram
  • Last diagram in each row is the answer to the questioned set combination.
  • All diagrams before it show the way of selecting component regions of the final one.
  • Refer to them with the set-notation written below them.
  • They are shown just to get an understanding how to arrive at the final solution

1)

(BC)(BC)withA(BC)A\qquad\qquad\qquad\small (B \cup C) \to(B \cup C)\text{with}\,A \to\to\to \bold{ (B \cup C) \cap A}


2)

  • (BC)(BC)withA(BC)A\qquad\qquad \small (B \cap C)^{'} \to (B \cap C)^{'} \text {with} \, A \to\to\to \bold{ (B \cap C)^{'} \cap \, A}


3)

  • (AB)(AC)(AB)(AC)\qquad\qquad \small (A \cup B) \to (A \cup C) \to \to\to \bold{(A\cup B)\cap(A \cup C)}


4)

  • (AB)(AB)C(AB)C=(AB)C\qquad\qquad \small (A \cup B) \to (A \cup B)^{'} \to C^{'}\to\to\to\bold{(A \cup B)^{'}-C = (A\cup B)^{'}\cap C^{'}}

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