Expert Mathematics Sets Class 11 Level 8

यदि \(A=\{0,1,2,3\}\), तो (0) को शामिल करने वाले ठीक दो-सदस्यीय उपसमुच्चयों की संख्या कितनी है?

If \(A=\{0,1,2,3\}\), how many two-element subsets contain (0)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

Element (0) is fixed, and the second element is chosen from (1,2,3). So there are (3) subsets.

Step 2

Why this answer is correct

The correct answer is B. (3). Element (0) is fixed, and the second element is chosen from (1,2,3). So there are (3) subsets.

Step 3

Exam Tip

(0) निश्चित है और दूसरा सदस्य (1,2,3) में से चुना जाएगा। इसलिए (3) उपसमुच्चय बनते हैं।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{0,1,2,3\}\), तो (0) को शामिल करने वाले ठीक दो-सदस्यीय उपसमुच्चयों की संख्या कितनी है? / If \(A=\{0,1,2,3\}\), how many two-element subsets contain (0)?

Correct Answer: B. (3). Explanation: (0) निश्चित है और दूसरा सदस्य (1,2,3) में से चुना जाएगा। इसलिए (3) उपसमुच्चय बनते हैं। / Element (0) is fixed, and the second element is chosen from (1,2,3). So there are (3) subsets.

Which concept should I revise for this Mathematics MCQ?

Element (0) is fixed, and the second element is chosen from (1,2,3). So there are (3) subsets.

What exam hint can help solve this Mathematics question?

(0) निश्चित है और दूसरा सदस्य (1,2,3) में से चुना जाएगा। इसलिए (3) उपसमुच्चय बनते हैं।

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