Hard Mathematics Chapter 1: Real Numbers Class 10 Level 18

\(\sqrt{2}\) के अपरिमेय होने के प्रमाण में (p=2k) रखने के बाद कौन-सा निष्कर्ष मिलता है?

In the proof that \(\sqrt{2}\) is irrational, what conclusion is obtained after putting (p=2k)?

Explanation opens after your attempt
Correct Answer

A. \(q^2=2k^2\), इसलिए (q) सम है\(q^2=2k^2\), so (q) is even

Step 1

Concept

From \(p^2=2q^2\) and (p=2k), we get \(4k^2=2q^2\).

Step 2

Why this answer is correct

Simplifying gives \(q^2=2k^2\), so \(q^2\) and (q) are even.

Step 3

Exam Tip

This second evenness completes the contradiction. चरण 1: \(p^2=2q^2\) और (p=2k) रखने पर \(4k^2=2q^2\) मिलता है। चरण 2: सरल करने पर \(q^2=2k^2\), इसलिए \(q^2\) सम और (q) सम है। चरण 3: यही दूसरा समपन विरोधाभास पूरा करता है।

FAQs

Mathematics Question FAQs

What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(q^2=2k^2\), इसलिए (q) सम है / \(q^2=2k^2\), so (q) is 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.