यदि \(A=\{1,2,3\}\) है तो (\mathcal{P}(A)) में कुल कितने तत्व होंगे?
If \(A=\{1,2,3\}\), how many elements will (\mathcal{P}(A)) have?
Explanation opens after your attempt
B. आठ8
Concept
A set with three elements has \(2^3=8\) subsets. In exams count (n(A)) first.
Why this answer is correct
The correct answer is B. आठ / 8. A set with three elements has \(2^3=8\) subsets. In exams count (n(A)) first.
Exam Tip
तीन तत्वों वाले समुच्चय के उपसमुच्चय \(2^3=8\) होते हैं। परीक्षा में पहले (n(A)) गिनें।
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