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 \(a_9\)?
Explanation opens after your attempt
C. (83)
Concept
\(a_9=9^2+2=83\). Exam tip: when the general term is given, avoid guessing.
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.
Exam Tip
\(a_9=9^2+2=83\) है। सामान्य पद मिलने पर अनुमान नहीं लगाना चाहिए।
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