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
Correct Answer

B. आठ8

Step 1

Concept

A set with three elements has \(2^3=8\) subsets. In exams count (n(A)) first.

Step 2

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.

Step 3

Exam Tip

तीन तत्वों वाले समुच्चय के उपसमुच्चय \(2^3=8\) होते हैं। परीक्षा में पहले (n(A)) गिनें।

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Mathematics Answer, Explanation and Revision Hints

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?

Correct Answer: B. आठ / 8. Explanation: तीन तत्वों वाले समुच्चय के उपसमुच्चय \(2^3=8\) होते हैं। परीक्षा में पहले (n(A)) गिनें। / A set with three elements has \(2^3=8\) subsets. In exams count (n(A)) first.

Which concept should I revise for this Mathematics MCQ?

A set with three elements has \(2^3=8\) subsets. In exams count (n(A)) first.

What exam hint can help solve this Mathematics question?

तीन तत्वों वाले समुच्चय के उपसमुच्चय \(2^3=8\) होते हैं। परीक्षा में पहले (n(A)) गिनें।