Concept-wise Practice

common idea MCQ Questions for Class 10

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Practice Questions

1 questions tagged with common idea.

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

कौन सा विकल्प \(\sqrt{3}\) और \(\sqrt{5}\) की सिद्धि में समान सोच को सबसे अच्छी तरह बताता है?

Which option best describes the common idea in the proofs of \(\sqrt{3}\) and \(\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय मानकर उसी अभाज्य गुणनखंड को अंश और हर दोनों में दिखानाAssume rational and show the same prime factor in both numerator and denominator

Step 1

Concept

Factor (3) works in \(\sqrt{3}\) and factor (5) works in \(\sqrt{5}\).

Step 2

Why this answer is correct

The rational assumption makes that same factor appear in both numerator and denominator.

Step 3

Exam Tip

This common factor contradicts lowest form. चरण 1: \(\sqrt{3}\) में गुणनखंड (3) और \(\sqrt{5}\) में गुणनखंड (5) काम करता है। चरण 2: परिमेय मान्यता से वही गुणनखंड अंश और हर दोनों में आ जाता है। चरण 3: यही साझा गुणनखंड सरलतम रूप से विरोध करता है।

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