\(यदि (U={1,2,\ldots,25}), (A={x:x\) विषम है\(}) और (B={x:x\) पूर्ण वर्ग है\(}), तो (|A'\cap B|) कितना है\)?
\(If (U={1,2,\ldots,25}), (A={x:x\) is odd\(}) and (B={x:x\) is a perfect square\(}), what is (|A'\cap B|)\)?
Explanation opens after your attempt
Correct Answer
B. (2)
Concept
(A') is the set of even numbers and \(B=\{1,4,9,16,25\}\). Their intersection is ({4,16}), so the count is (2).
Why this answer is correct
The correct answer is B. (2). (A') is the set of even numbers and \(B=\{1,4,9,16,25\}\). Their intersection is ({4,16}), so the count is (2).
Exam Tip
(A') सम संख्याएँ हैं और \(B=\{1,4,9,16,25\}\)। इनके प्रतिच्छेद में ({4,16}) हैं, इसलिए संख्या (2) है।
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