यदि \(U={1,2,\ldots,64}\), (A) वर्ग संख्याओं का और (B) सम संख्याओं का समुच्चय है, तो (n\(A\cap B\)) कितना है?
If \(U={1,2,\ldots,64}\), (A) is the set of square numbers and (B) is the set of even numbers, then what is (n\(A\cap B\))?
Explanation opens after your attempt
A. (4)
Concept
The even squares are (4,16,36,64), so (n\(A\cap B\)=4). List the squares and then apply the condition.
Why this answer is correct
The correct answer is A. (4). The even squares are (4,16,36,64), so (n\(A\cap B\)=4). List the squares and then apply the condition.
Exam Tip
सम वर्ग (4,16,36,64) हैं, इसलिए (n\(A\cap B\)=4) है। वर्गों की सूची बनाकर शर्त लगाएँ।
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