\(\sqrt{5}\) के प्रमाण में (m=5k) रखने पर \(m^2=5n^2\) से कौन सा समीकरण बनेगा?
In the proof of \(\sqrt{5}\), after putting (m=5k), which equation follows from \(m^2=5n^2\)?
Explanation opens after your attempt
B. \(25k^2=5n^2\)
Concept
If (m=5k), then \(m^2=25k^2\).
Why this answer is correct
So \(m^2=5n^2\) becomes \(25k^2=5n^2\).
Exam Tip
Writing ((5k)2) as \(5k^2\) is a mistake. चरण 1: (m=5k) रखने पर \(m^2=25k^2\) होगा। चरण 2: इसलिए \(m^2=5n^2\) में \(25k^2=5n^2\) मिलेगा। चरण 3: ((5k)2) को \(5k^2\) लिखना गलती है।
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