यदि \(A={\varnothing,{\varnothing}}\) है, तो (n(\mathcal{P}(A))) कितना होगा?
If \(A={\varnothing,{\varnothing}}\), what is (n(\mathcal{P}(A)))?
Explanation opens after your attempt
Correct Answer
C. (4)
Concept
Set (A) has two distinct elements so its power set has \(2^2=4\) elements. Treat \(\varnothing\) and \({\varnothing}\) as different.
Why this answer is correct
The correct answer is C. (4). Set (A) has two distinct elements so its power set has \(2^2=4\) elements. Treat \(\varnothing\) and \({\varnothing}\) as different.
Exam Tip
(A) में दो अलग-अलग तत्व हैं इसलिए उसके घात समुच्चय में \(2^2=4\) तत्व होंगे। \(\varnothing\) और \({\varnothing}\) को अलग समझें।
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