मान लीजिए P̅ और Q̅ दो समुच्चय P और Q के पूरक को दर्शाते हैं। तो समुच्चय (P - Q) ∪ (Q - P) ∪ (P ∩ Q) का मान क्या है?

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  1. P ∪ Q
  2. P̅ ∪ Q̅ 
  3. P ∩ Q
  4. P̅ ∩ Q̅ 

Answer (Detailed Solution Below)

Option 1 : P ∪ Q
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NIMCET 2020 Official Paper
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120 Questions 480 Marks 120 Mins

Detailed Solution

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संकल्पना:

P - Q = तत्वों का वह समुच्चय जो P से संबंधित है लेकिन Q से नहीं। 

P U Q = वह समुच्चय जिसमें P के सभी तत्व और Q के सभी तत्व शामिल हैं, तो सामान्य तत्व को केवल एक बार लिया गया है। 

P ∩ Q = सभी तत्वों का वह समुच्चय जो A और B दोनों के लिए सामान्य होते हैं। 

गणना:

माना कि P = {1, 2, 3, 4} और Q = {3, 4, 5, 6} है। 

⇒ P - Q = {1, 2}

⇒ Q - P = {5, 6}

⇒ P U Q = {1, 2, 3, 4, 5, 6}

⇒ P ∩ Q = {3, 4}

⇒ (P - Q) ∪ (Q - P) ∪ (P ∩ Q) = {1, 2} U {5, 6} U {3, 4} = {1, 2, 3, 4, 5, 6} = P U Q

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