Expert Mathematics Sets Class 11 Level 8

यदि \(A={\emptyset,{\emptyset},1}\) है, तो कौन सा (A) का उपसमुच्चय नहीं है?

If \(A={\emptyset,{\emptyset},1}\), which is not a subset of (A)?

Explanation opens after your attempt
Correct Answer

D. ({1,2})

Step 1

Concept

The element (2) is not in (A). Every element of a subset must belong to the original set.

Step 2

Why this answer is correct

The correct answer is D. ({1,2}). The element (2) is not in (A). Every element of a subset must belong to the original set.

Step 3

Exam Tip

(2) समुच्चय (A) का सदस्य नहीं है। उपसमुच्चय में हर सदस्य मूल समुच्चय में होना चाहिए।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(A={\emptyset,{\emptyset},1}\) है, तो कौन सा (A) का उपसमुच्चय नहीं है? / If \(A={\emptyset,{\emptyset},1}\), which is not a subset of (A)?

Correct Answer: D. ({1,2}). Explanation: (2) समुच्चय (A) का सदस्य नहीं है। उपसमुच्चय में हर सदस्य मूल समुच्चय में होना चाहिए। / The element (2) is not in (A). Every element of a subset must belong to the original set.

Which concept should I revise for this Mathematics MCQ?

The element (2) is not in (A). Every element of a subset must belong to the original set.

What exam hint can help solve this Mathematics question?

(2) समुच्चय (A) का सदस्य नहीं है। उपसमुच्चय में हर सदस्य मूल समुच्चय में होना चाहिए।

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