\(\sqrt{2}\) के प्रमाण में कौन-सा चरण यदि छोड़ दिया जाए तो प्रमाण अधूरा हो जाएगा?
In the proof of \(\sqrt{2}\), which skipped step would make the proof incomplete?
Explanation opens after your attempt
Correct Answer
A. (a) सम होने के बाद (a=2r) रखकर (b) सम सिद्ध करनाAfter proving (a) even, taking (a=2r) to prove (b) even
Concept
Only (a) being even is not a contradiction. It is necessary to prove (b) also even.
Why this answer is correct
The correct answer is A. (a) सम होने के बाद (a=2r) रखकर (b) सम सिद्ध करना / After proving (a) even, taking (a=2r) to prove (b) even. Only (a) being even is not a contradiction. It is necessary to prove (b) also even.
Exam Tip
सिर्फ (a) सम होना विरोधाभास नहीं है। (b) को भी सम सिद्ध करना आवश्यक है।
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