\(\sqrt{2}\) के प्रमाण में \(a^2=2b^2\) मिलने के बाद (a=2r) क्यों लिखा जाता है?
In the proof of \(\sqrt{2}\), why is (a=2r) written after getting \(a^2=2b^2\)?
Explanation opens after your attempt
Correct Answer
A. क्योंकि (a) सम सिद्ध होता हैBecause (a) is proved even
Concept
Since \(a^2\) is even, (a) is even. An even number is written as (2r).
Why this answer is correct
The correct answer is A. क्योंकि (a) सम सिद्ध होता है / Because (a) is proved even. Since \(a^2\) is even, (a) is even. An even number is written as (2r).
Exam Tip
\(a^2\) सम होने से (a) सम है। सम संख्या को (2r) के रूप में लिखा जाता है।
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