समीकरण \(x^2=9\) के मूल कौन-से हैं?
What are the roots of \(x^2=9\)?
Explanation opens after your attempt
Correct Answer
C. (-3,3)
Concept
From \(x^2=9\), we get \(x=\pm3\). While taking square roots, take both positive and negative values.
Why this answer is correct
The correct answer is C. (-3,3). From \(x^2=9\), we get \(x=\pm3\). While taking square roots, take both positive and negative values.
Exam Tip
\(x^2=9\) से \(x=\pm3\) मिलता है। वर्गमूल लेते समय धन और ऋण दोनों मान लें।
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