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