UPSKILL MATH PLUS
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Learn more1. If \(A = \{1, 2, 3, 4, 5, 7, 9, 11\}\), find \(n(A)\).
\(n(A)\) \(=\)
2. Are \(P = \{x: -3 \le x \le 0, x \in \mathbb{Z}\}\) and \(Q = \) The set of all prime factors of \(210\), equivalent sets?
3. Are \(A = \{x : x \in \mathbb{N}, 4 \le x \le 8\}\) and \(B = \{4, 5, 6, 7, 8\}\) equal sets?
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