वर्गमूल सर्पिल में \(\sqrt{121}\) और \(\sqrt{122}\) के बारे में कौन-सा कथन सही है?

Which statement about \(\sqrt{121}\) and \(\sqrt{122}\) in a square root spiral is correct?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. \(\sqrt{121}=11\) और \(\sqrt{122}\) अपरिमेय है\(\sqrt{121}=11\) and \(\sqrt{122}\) is irrational

Step 1

Concept

(121) is a perfect square, but (122) is not. Therefore \(\sqrt{122}\) is irrational.

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{121}=11\) और \(\sqrt{122}\) अपरिमेय है / \(\sqrt{121}=11\) and \(\sqrt{122}\) is irrational. (121) is a perfect square, but (122) is not. Therefore \(\sqrt{122}\) is irrational.

Step 3

Exam Tip

(121) पूर्ण वर्ग है, लेकिन (122) पूर्ण वर्ग नहीं है। इसलिए \(\sqrt{122}\) अपरिमेय है।

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Mathematics Answer, Explanation and Revision Hints

वर्गमूल सर्पिल में \(\sqrt{121}\) और \(\sqrt{122}\) के बारे में कौन-सा कथन सही है? / Which statement about \(\sqrt{121}\) and \(\sqrt{122}\) in a square root spiral is correct?

Correct Answer: A. \(\sqrt{121}=11\) और \(\sqrt{122}\) अपरिमेय है / \(\sqrt{121}=11\) and \(\sqrt{122}\) is irrational. Explanation: (121) पूर्ण वर्ग है, लेकिन (122) पूर्ण वर्ग नहीं है। इसलिए \(\sqrt{122}\) अपरिमेय है। / (121) is a perfect square, but (122) is not. Therefore \(\sqrt{122}\) is irrational.

Which concept should I revise for this Mathematics MCQ?

(121) is a perfect square, but (122) is not. Therefore \(\sqrt{122}\) is irrational.

What exam hint can help solve this Mathematics question?

(121) पूर्ण वर्ग है, लेकिन (122) पूर्ण वर्ग नहीं है। इसलिए \(\sqrt{122}\) अपरिमेय है।