Expert Mathematics Chapter 1: Real Numbers Class 10 Level 18

यदि \(\sqrt{2}=\frac{p}{q}\) को सरलतम रूप में मानने के बाद \(p^2=2q^2\) मिलता है, तो विरोधाभास तक पहुँचने के लिए कौन-सा क्रम सबसे तार्किक है?

If \(\sqrt{2}=\frac{p}{q}\) is assumed in lowest form and \(p^2=2q^2\) is obtained, which sequence is most logical to reach the contradiction?

Explanation opens after your attempt
Correct Answer

A. \(p^2\) सम, फिर (p) सम, फिर (p=2k), फिर (q) सम\(p^2\) even, then (p) even, then (p=2k), then (q) even

Step 1

Concept

From \(p^2=2q^2\), \(p^2\) is even, so (p) is even.

Step 2

Why this answer is correct

Putting (p=2k) gives \(q^2=2k^2\), so (q) is even.

Step 3

Exam Tip

Both being even contradicts coprimality of the lowest-form fraction. चरण 1: \(p^2=2q^2\) से \(p^2\) सम और इसलिए (p) सम मिलता है। चरण 2: (p=2k) रखने पर \(q^2=2k^2\) और फिर (q) सम मिलता है। चरण 3: दोनों सम होना सरलतम भिन्न की सहअभाज्यता से टकराता है।

FAQs

Mathematics Question FAQs

What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(p^2\) सम, फिर (p) सम, फिर (p=2k), फिर (q) सम / \(p^2\) even, then (p) even, then (p=2k), then (q) even.

Where can I practice more Mathematics questions?

Open the subject page or level quiz links on this page to practice more active Mathematics MCQs with answers and explanations.

Related Mathematics Questions

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.