यदि \(A=\{1,2,3\}\) और \(B=\{3,4\}\) हैं, तो (\mathcal{P}\(A\cup B\)) में कितने तत्व होंगे?
If \(A=\{1,2,3\}\) and \(B=\{3,4\}\), how many elements will (\mathcal{P}\(A\cup B\)) have?
Explanation opens after your attempt
Correct Answer
B. (16)
Concept
\(A\cup B={1,2,3,4}\), so it has (4) elements. Therefore its power set has \(2^4=16\) elements.
Why this answer is correct
The correct answer is B. (16). \(A\cup B={1,2,3,4}\), so it has (4) elements. Therefore its power set has \(2^4=16\) elements.
Exam Tip
\(A\cup B={1,2,3,4}\), इसलिए इसमें (4) तत्व हैं। अतः उसके घात समुच्चय में \(2^4=16\) तत्व होंगे।
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