अनुक्रम \(3,6,11,18,27,\ldots\) में \(a_n=n^2+2\) है। \(a_9\) का मान क्या है?

In the sequence \(3,6,11,18,27,\ldots\), \(a_n=n^2+2\). What is \(a_9\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (83)

Step 1

Concept

\(a_9=9^2+2=83\). Exam tip: when the general term is given, avoid guessing.

Step 2

Why this answer is correct

The correct answer is C. (83). \(a_9=9^2+2=83\). Exam tip: when the general term is given, avoid guessing.

Step 3

Exam Tip

\(a_9=9^2+2=83\) है। सामान्य पद मिलने पर अनुमान नहीं लगाना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(3,6,11,18,27,\ldots\) में \(a_n=n^2+2\) है। \(a_9\) का मान क्या है? / In the sequence \(3,6,11,18,27,\ldots\), \(a_n=n^2+2\). What is \(a_9\)?

Correct Answer: C. (83). Explanation: \(a_9=9^2+2=83\) है। सामान्य पद मिलने पर अनुमान नहीं लगाना चाहिए। / \(a_9=9^2+2=83\). Exam tip: when the general term is given, avoid guessing.

Which concept should I revise for this Mathematics MCQ?

\(a_9=9^2+2=83\). Exam tip: when the general term is given, avoid guessing.

What exam hint can help solve this Mathematics question?

\(a_9=9^2+2=83\) है। सामान्य पद मिलने पर अनुमान नहीं लगाना चाहिए।