Expert Mathematics Chapter 1: Real Numbers Class 10 Level 15

यदि (p) और (q) सहअभाज्य धनात्मक पूर्णांक हैं और \(\sqrt{2}=\frac{p}{q}\) मान लिया जाए तो विरोधाभास कहां बनता है?

If (p) and (q) are coprime positive integers and \(\sqrt{2}=\frac{p}{q}\) is assumed then where does the contradiction arise?

Explanation opens after your attempt
Correct Answer

B. (p) और (q) दोनों सम मिलते हैंBoth (p) and (q) become even

Step 1

Concept

From \(\sqrt{2}=\frac{p}{q}\) we get \(p^2=2q^2\).

Step 2

Why this answer is correct

This makes (p) even and then (q) even.

Step 3

Exam Tip

Coprime numbers cannot both be even so the assumption is false. चरण 1: \(\sqrt{2}=\frac{p}{q}\) से \(p^2=2q^2\) मिलता है। चरण 2: इससे (p) सम और फिर (q) भी सम मिलता है। चरण 3: सहअभाज्य संख्याएं दोनों सम नहीं हो सकतीं इसलिए मान्यता गलत है।

FAQs

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What is the correct answer to this Mathematics MCQ?

The correct answer is B. (p) और (q) दोनों सम मिलते हैं / Both (p) and (q) become even.

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