यदि \(A=\{1,2,{3}\}\), तो कौन सा कथन सही है?
If \(A=\{1,2,{3}\}\), which statement is correct?
Explanation opens after your attempt
B. \({3}\in A\)
Concept
Here ({3}) itself is an element of (A), not 3. Keep element and subset ideas separate.
Why this answer is correct
The correct answer is B. \({3}\in A\). Here ({3}) itself is an element of (A), not 3. Keep element and subset ideas separate.
Exam Tip
यहां ({3}) स्वयं (A) का अवयव है, 3 नहीं। अवयव और उपसमुच्चय में अंतर ध्यान रखें।
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