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Question Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

यदि \(\sqrt{5}\) परिमेय मानने पर विरोधाभास मिलता है, तो विरोधाभास विधि के अनुसार क्या निष्कर्ष होगा?

If assuming \(\sqrt{5}\) rational leads to a contradiction, what is the conclusion according to the contradiction method?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5}\) अपरिमेय है\(\sqrt{5}\) is irrational

Step 1

Concept

In contradiction method, the opposite assumption is taken.

Step 2

Why this answer is correct

If the rational assumption becomes impossible, it is false.

Step 3

Exam Tip

Therefore \(\sqrt{5}\) is proved irrational. चरण 1: विरोधाभास विधि में उलटी मान्यता ली जाती है। चरण 2: यदि परिमेय मान्यता असंभव निकले, तो वह गलत है। चरण 3: इसलिए \(\sqrt{5}\) अपरिमेय सिद्ध होता है।

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Question Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

यदि \(\sqrt{5}\) को परिमेय मानने पर विरोधाभास आया, तो कौन सी बात सही सिद्ध होती है?

If assuming \(\sqrt{5}\) rational leads to a contradiction, what is proved true?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5}\) अपरिमेय है\(\sqrt{5}\) is irrational

Step 1

Concept

In contradiction method, the opposite assumption is taken.

Step 2

Why this answer is correct

If the rational assumption is false, irrationality is proved.

Step 3

Exam Tip

Therefore \(\sqrt{5}\) is irrational. चरण 1: विरोधाभास विधि में उलटी मान्यता ली जाती है। चरण 2: यदि परिमेय मान्यता गलत निकले, तो अपरिमेयता सिद्ध होती है। चरण 3: इसलिए \(\sqrt{5}\) अपरिमेय है।

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Question Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

यदि \(\sqrt{5}\) को परिमेय मानने पर अंत में विरोधाभास मिलता है, तो सही निष्कर्ष कौन सा है?

If assuming \(\sqrt{5}\) rational finally gives a contradiction, which conclusion is correct?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5}\) अपरिमेय है\(\sqrt{5}\) is irrational

Step 1

Concept

In contradiction, the opposite assumption is taken.

Step 2

Why this answer is correct

If the rational assumption becomes impossible, it is false.

Step 3

Exam Tip

Therefore \(\sqrt{5}\) is proved irrational. चरण 1: विरोधाभास विधि में उलटी मान्यता ली जाती है। चरण 2: यदि परिमेय मान्यता असंभव निकले, तो वह गलत है। चरण 3: इसलिए \(\sqrt{5}\) अपरिमेय सिद्ध होता है।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

कौन सा कथन \(\sqrt{5}\) की अपरिमेयता के प्रमाण को पूरा करता है?

Which statement completes the proof of irrationality of \(\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

A. अतः \(\sqrt{5}\) अपरिमेय हैTherefore \(\sqrt{5}\) is irrational

Step 1

Concept

The rational assumption makes both (a) and (b) divisible by (5).

Step 2

Why this answer is correct

This contradicts the coprime condition.

Step 3

Exam Tip

Therefore the conclusion is that \(\sqrt{5}\) is irrational. चरण 1: परिमेय मान्यता से (a) और (b) दोनों (5) से विभाज्य मिलते हैं। चरण 2: यह सहअभाज्य होने की शर्त से टकराता है। चरण 3: इसलिए निष्कर्ष है कि \(\sqrt{5}\) अपरिमेय है।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

\(\sqrt{5}\) के लिए सही अंतिम निष्कर्ष कौन सा है?

What is the correct final conclusion for \(\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5}\) अपरिमेय है\(\sqrt{5}\) is irrational

Step 1

Concept

Assuming rationality makes both (p) and (q) divisible by (5).

Step 2

Why this answer is correct

This contradicts the coprime condition.

Step 3

Exam Tip

Hence \(\sqrt{5}\) is irrational. चरण 1: परिमेय मानने पर (p) और (q) दोनों (5) से विभाज्य मिलते हैं। चरण 2: यह सहअभाज्य होने की शर्त के विरुद्ध है। चरण 3: इसलिए \(\sqrt{5}\) अपरिमेय है।

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