Exercise 10.

Let \(A = \{x \in \N \st 3 \le x \le 13\}\text{,}\) \(B = \{x \in \N \st x \mbox{ is even} \}\text{,}\) and \(C = \{x \in \N \st x \mbox{ is odd} \}\text{.}\)

  1. Find \(A \cap B\text{.}\)

  2. Find \(A \cup B\text{.}\)

  3. Find \(B \cap C\text{.}\)

  4. Find \(B \cup C\text{.}\)

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