Expert Mathematics Chapter 1: Real Numbers Class 10 Level 18

\(\sqrt{2}\) के प्रमाण में कौन-सा कथन प्रमाण को अधूरा छोड़ देगा?

Which statement would leave the proof of \(\sqrt{2}\) incomplete?

Explanation opens after your attempt
Correct Answer

A. \(p^2=2q^2\) से (p) सम है और यहीं रुक जानाFrom \(p^2=2q^2\), (p) is even, and stopping there

Step 1

Concept

Proving (p) even is only half of the proof.

Step 2

Why this answer is correct

We must next put (p=2k) and show (q) is also even.

Step 3

Exam Tip

Without reaching the final contradiction, the answer is incomplete. चरण 1: (p) सम होना केवल आधा प्रमाण है। चरण 2: आगे (p=2k) रखकर (q) का भी सम होना दिखाना पड़ता है। चरण 3: अंतिम विरोधाभास तक पहुँचे बिना उत्तर पूरा नहीं माना जाएगा।

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The correct answer is A. \(p^2=2q^2\) से (p) सम है और यहीं रुक जाना / From \(p^2=2q^2\), (p) is even, and stopping there.

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