Expert Mathematics Chapter 1: Real Numbers Class 10 Level 17

\(\sqrt{5}\) की अपरिमेयता सिद्ध करने में (5) का पूर्ण वर्ग न होना किस तरह सहायक है?

How does (5) not being a perfect square help in understanding the irrationality of \(\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

A. यह बताता है कि \(\sqrt{5}\) पूर्णांक नहीं है, पर पूर्ण अपरिमेयता के लिए विरोधाभास प्रमाण चाहिएIt shows \(\sqrt{5}\) is not an integer, but full irrationality needs contradiction proof

Step 1

Concept

Since (5) is not a perfect square, \(\sqrt{5}\) cannot be an integer.

Step 2

Why this answer is correct

But to prove irrationality, we must also show it is not any rational fraction.

Step 3

Exam Tip

That is why the contradiction proof is written. चरण 1: (5) पूर्ण वर्ग नहीं है, इसलिए \(\sqrt{5}\) पूर्णांक नहीं हो सकता। चरण 2: पर अपरिमेयता सिद्ध करने के लिए यह दिखाना भी जरूरी है कि वह कोई परिमेय भिन्न नहीं है। चरण 3: इसलिए विरोधाभास वाला प्रमाण लिखा जाता है।

FAQs

Mathematics Question FAQs

What is the correct answer to this Mathematics MCQ?

The correct answer is A. यह बताता है कि \(\sqrt{5}\) पूर्णांक नहीं है, पर पूर्ण अपरिमेयता के लिए विरोधाभास प्रमाण चाहिए / It shows \(\sqrt{5}\) is not an integer, but full irrationality needs contradiction proof.

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.