यदि \(21<\sqrt{m}<22\) है तो (m) के लिए सही सीमा कौन सी है?
If \(21<\sqrt{m}<22\), which range is correct for (m)?
Explanation opens after your attempt
Correct Answer
A. (441<m<484)
Concept
Squaring positive sides gives \(21^2<m<22^2\). Hence (441<m<484) is correct.
Why this answer is correct
The correct answer is A. (441<m<484). Squaring positive sides gives \(21^2<m<22^2\). Hence (441<m<484) is correct.
Exam Tip
धनात्मक पक्षों का वर्ग करने पर \(21^2<m<22^2\) मिलता है। इसलिए (441<m<484) सही है।
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