Concept-wise Practice

rule MCQ Questions for Class 10

rule se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with rule.

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

कौन सा नियम \(\sqrt{2}\) के प्रमाण में बार-बार उपयोग होता है?

Which rule is repeatedly used in the proof of \(\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

A. यदि किसी संख्या का वर्ग सम है, तो संख्या सम हैIf the square of a number is even, the number is even

Step 1

Concept

From \(a^2=2b^2\), \(a^2\) is even.

Step 2

Why this answer is correct

By the rule, (a) is even, and later (b) is also even.

Step 3

Exam Tip

Understanding this rule clearly is important. चरण 1: \(a^2=2b^2\) से \(a^2\) सम मिलता है। चरण 2: नियम से (a) सम मिलता है और आगे (b) भी सम मिलता है। चरण 3: इस नियम को स्पष्ट रूप से समझना जरूरी है।

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