समुच्चय \({x \in \mathbb{R}:x^2\le 0}\) किसके समान है?
The set \({x \in \mathbb{R}:x^2\le 0}\) is equal to which set?
Explanation opens after your attempt
B. ({0})
Concept
The square of a real number is never negative.
Why this answer is correct
\(x^2\le 0\) is possible only when \(x^2=0\).
Exam Tip
Hence (x=0), so the set is ({0}). चरण 1: वास्तविक संख्या का वर्ग कभी ऋणात्मक नहीं होता। चरण 2: \(x^2\le 0\) तभी संभव है जब \(x^2=0\)। चरण 3: इससे (x=0), इसलिए समुच्चय ({0}) है।
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