PDF chapter test TRY NOW
If \(P\) \(=\) \(\{\)2, 4, 7, 12, 17, 20 \(\}\), \(Q\) \(=\) \(\{\)2, 7, 14, 17, 20\(\}\) and \(R\) \(=\) \(\{\)4, 7, 14, 17, 20, 23\(\}\), then find \(P \cap (Q \cap R)\).
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