असमानता \(x^2\le 25\) का संख्या रेखा पर सही अंतराल कौन-सा है?
Which interval is correct on the number line for \(x^2\le 25\)?
Explanation opens after your attempt
Correct Answer
B. ([-5,5])
Concept
\(x^2\le25\) means \(|x|\le5\), so \(-5\le x\le5\). In exams, take the closed middle part when the sign is \(\le\).
Why this answer is correct
The correct answer is B. ([-5,5]). \(x^2\le25\) means \(|x|\le5\), so \(-5\le x\le5\). In exams, take the closed middle part when the sign is \(\le\).
Exam Tip
\(x^2\le25\) का अर्थ \(|x|\le5\), इसलिए \(-5\le x\le5\)। परीक्षा में square inequality में बीच का बंद भाग लें जब चिन्ह \(\le\) हो।
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