यदि \(A=\{a,b,c,d\}\) है तो (\mathcal{P}(A)) में कितने दो तत्व वाले उपसमुच्चय होंगे?
If \(A=\{a,b,c,d\}\), how many two element subsets are in (\mathcal{P}(A))?
Explanation opens after your attempt
C. (6)
Concept
Choosing two elements from four gives (6) subsets. For easy checking list all pairs.
Why this answer is correct
The correct answer is C. (6). Choosing two elements from four gives (6) subsets. For easy checking list all pairs.
Exam Tip
चार तत्वों में से दो चुनने पर (6) उपसमुच्चय बनते हैं। आसान गिनती के लिए सभी जोड़े बनाकर जांचें।
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