अनुक्रम \(1,4,9,16,\ldots\) में (81) कौन-सा पद है?
In the sequence \(1,4,9,16,\ldots\) which term is (81)?
Explanation opens after your attempt
C. नौवाँ पद(9)th term
Concept
Its rule is \(a_n=n^2\) and \(n^2=81\) gives (n=9). In exams identify the term number of square numbers.
Why this answer is correct
The correct answer is C. नौवाँ पद / (9)th term. Its rule is \(a_n=n^2\) and \(n^2=81\) gives (n=9). In exams identify the term number of square numbers.
Exam Tip
इसका नियम \(a_n=n^2\) है और \(n^2=81\) से (n=9) है। परीक्षा में वर्ग संख्याओं की पद संख्या पहचानें।
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