Medium Mathematics Chapter 1: Real Numbers Class 10 Level 15

कौन-सा कथन हमेशा सही है?

Which statement is always correct?

Explanation opens after your attempt
Correct Answer

C. परिमेय और अपरिमेय संख्या का अंतर अपरिमेय होता हैThe difference of a rational and an irrational number is irrational

Step 1

Concept

Subtracting an irrational number from a rational number leaves an irrational part.

Step 2

Why this answer is correct

For example, \(5-\sqrt{2}\) is irrational.

Step 3

Exam Tip

For always-type statements, checking counterexamples is useful. चरण 1: परिमेय संख्या में से अपरिमेय संख्या घटाने पर अपरिमेय भाग बचता है। चरण 2: जैसे \(5-\sqrt{2}\) अपरिमेय है। चरण 3: हमेशा वाले कथनों को प्रतिउदाहरण से जांचना उपयोगी है।

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What is the correct answer to this Mathematics MCQ?

The correct answer is C. परिमेय और अपरिमेय संख्या का अंतर अपरिमेय होता है / The difference of a rational and an irrational number is irrational.

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