अनुक्रम \(5,12,21,32,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(5,12,21,32,\ldots\)?
Explanation opens after your attempt
A. \(n^2+4n\)
Concept
Putting \(n^2+4n\) gives (5,12,21,32). Check the rule on the first four terms.
Why this answer is correct
The correct answer is A. \(n^2+4n\). Putting \(n^2+4n\) gives (5,12,21,32). Check the rule on the first four terms.
Exam Tip
\(n^2+4n\) रखने पर (5,12,21,32) मिलते हैं। पहले चार पदों पर नियम जांचें।
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