यदि \(A=\{1,{1,2},3\}\) है तो कौन सा कथन असत्य है?
If \(A=\{1,{1,2},3\}\) then which statement is false?
Explanation opens after your attempt
Correct Answer
D. \({1,2}\subseteq A\)
Concept
For \({1,2}\subseteq A\), \(2\in A\) must be true, but (2) is not a separate element. Keep element and subset distinct.
Why this answer is correct
The correct answer is D. \({1,2}\subseteq A\). For \({1,2}\subseteq A\), \(2\in A\) must be true, but (2) is not a separate element. Keep element and subset distinct.
Exam Tip
\({1,2}\subseteq A\) के लिए \(2\in A\) होना चाहिए, पर (2) अलग अवयव नहीं है। अवयव और उपसमुच्चय में अंतर रखें।
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