Question
Download Solution PDFयदि U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} एक सार्वत्रिक समुच्चय है और A = {1, 3, 5, 7, 9} है, तो A' की गणनीयता ज्ञात कीजिए।
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Detailed Solution
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एक समुच्चय का संपूरक:
माना कि A कोई समुच्चय है। फिर A के संपूरक को A’ या Ac द्वारा निरूपित किया जाता है जैसे कि A’ = {x: x ∉ A} = U - A, जहां U सार्वत्रिक समुच्चय है।
गणना :
दिया गया है: U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} एक सार्वत्रिक समुच्चय है और A = {1, 3, 5, 7, 9}
यहाँ, हमें A' ढूँढ़ना है।
जैसा कि हम जानते हैं कि, A' = {x: x ∉ A} = U - A, जहाँ U सार्वत्रिक समुच्चय है
⇒ A' = U - A = {2, 4, 6, 8, 10}
जैसा कि हम जानते हैं कि यदि समुच्चय A में m अवयव हैं तो समुच्चय A की गणनीयता n(A) = m द्वारा दी जाती है।
⇒ n(A') = 5
अत: सही विकल्प 2 है।
Last updated on May 31, 2025
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