Medium Mathematics Chapter 1: Real Numbers Class 10 Level 15

यदि \(\sqrt{n}\) (12) और (13) के बीच है, तो (n) के लिए कौन-सा मान सही हो सकता है और \(\sqrt{n}\) अपरिमेय होगा?

If \(\sqrt{n}\) lies between (12) and (13), which value of (n) can be correct and makes \(\sqrt{n}\) irrational?

Explanation opens after your attempt
Correct Answer

B. (150)

Step 1

Concept

\(12<\sqrt{n}<13\) means (144<n<169).

Step 2

Why this answer is correct

(150) lies in this interval and is not a perfect square, so \(\sqrt{150}\) is irrational.

Step 3

Exam Tip

Square both bounds to handle square-root ranges. चरण 1: \(12<\sqrt{n}<13\) का अर्थ है (144<n<169)। चरण 2: (150) इस अंतराल में है और पूर्ण वर्ग नहीं है, इसलिए \(\sqrt{150}\) अपरिमेय है। चरण 3: वर्गमूल की सीमा के लिए दोनों तरफ वर्ग करें।

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