Sets Operations

Discrete Mathematics Level 2

Let \(A\), \(B\) and \(C\) be any three sets such that \(A-B=C\); then which of the following statement(s) is/are correct? (Enter the sum of the serial numbers as answer, for example if all three statements are correct, then the answer is: \(1+2+3=6\).)

  1. \(A\) is the union of \(B\) and \(C\)
  2. \(C\) is always a proper subset of \(A\)
  3. \(C\) is the compliment of \(B\)

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