समीकरण \(x^2=121\) के मूल कौन से हैं?
What are the roots of \(x^2=121\)?
Explanation opens after your attempt
A. (11) और (-11)(11) and (-11)
Concept
From \(x^2=121\), we get \(x=\pm11\). Take both signs while finding square roots.
Why this answer is correct
The correct answer is A. (11) और (-11) / (11) and (-11). From \(x^2=121\), we get \(x=\pm11\). Take both signs while finding square roots.
Exam Tip
\(x^2=121\) से \(x=\pm11\) मिलता है। वर्गमूल लेते समय दोनों चिन्ह लें।
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