Medium Mathematics Chapter 1: Real Numbers Class 10 Level 13

निम्नलिखित में से कौन-सा परिणाम परिमेय नहीं है?

Which of the following results is not rational?

Explanation opens after your attempt
Correct Answer

C. \(\sqrt{2}+\sqrt{18}\)

Step 1

Concept

\(\sqrt{2}+\sqrt{18}=\sqrt{2}+3\sqrt{2}=4\sqrt{2}\).

Step 2

Why this answer is correct

\(4\sqrt{2}\) is irrational, so it is not rational.

Step 3

Exam Tip

In options, simplify every result before deciding its nature. चरण 1: \(\sqrt{2}+\sqrt{18}=\sqrt{2}+3\sqrt{2}=4\sqrt{2}\)। चरण 2: \(4\sqrt{2}\) अपरिमेय है, इसलिए परिमेय नहीं है। चरण 3: विकल्पों में पहले सभी परिणाम सरल करें, फिर प्रकृति तय करें।

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What is the correct answer to this Mathematics MCQ?

The correct answer is C. \(\sqrt{2}+\sqrt{18}\).

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