यदि \(A=\{1,2,3\}\) और \(B=\{3,4\}\), तो (\mathcal{P}\(A\cap B\)) में कितने तत्व हैं?
If \(A=\{1,2,3\}\) and \(B=\{3,4\}\), how many elements are in (\mathcal{P}\(A\cap B\))?
Explanation opens after your attempt
Correct Answer
A. (2)
Concept
\(A\cap B={3}\), which has (1) element. Hence its power set has \(2^1=2\) elements.
Why this answer is correct
The correct answer is A. (2). \(A\cap B={3}\), which has (1) element. Hence its power set has \(2^1=2\) elements.
Exam Tip
\(A\cap B={3}\) है, जिसमें (1) तत्व है। इसलिए इसके घात समुच्चय में \(2^1=2\) तत्व होंगे।
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