यदि \(A=\{1,{1},{1,2}\}\), तो निम्न में से कौन (A) का उपसमुच्चय है?

If \(A=\{1,{1},{1,2}\}\), which of the following is a subset of (A)?

Explanation opens after your attempt
Correct Answer

A. ({1,{1,2}})

Step 1

Concept

Both (1) and ({1,2}) in the option are elements of (A). Treat ({1,2}) as one element of (A), not two separate elements.

Step 2

Why this answer is correct

The correct answer is A. ({1,{1,2}}). Both (1) and ({1,2}) in the option are elements of (A). Treat ({1,2}) as one element of (A), not two separate elements.

Step 3

Exam Tip

विकल्प में (1) और ({1,2}) दोनों (A) के तत्व हैं। ({1,2}) को (A) का तत्व समझें, दो अलग तत्व नहीं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,{1},{1,2}\}\), तो निम्न में से कौन (A) का उपसमुच्चय है? / If \(A=\{1,{1},{1,2}\}\), which of the following is a subset of (A)?

Correct Answer: A. ({1,{1,2}}). Explanation: विकल्प में (1) और ({1,2}) दोनों (A) के तत्व हैं। ({1,2}) को (A) का तत्व समझें, दो अलग तत्व नहीं। / Both (1) and ({1,2}) in the option are elements of (A). Treat ({1,2}) as one element of (A), not two separate elements.

Which concept should I revise for this Mathematics MCQ?

Both (1) and ({1,2}) in the option are elements of (A). Treat ({1,2}) as one element of (A), not two separate elements.

What exam hint can help solve this Mathematics question?

विकल्प में (1) और ({1,2}) दोनों (A) के तत्व हैं। ({1,2}) को (A) का तत्व समझें, दो अलग तत्व नहीं।