अनुक्रम \(4,10,18,28,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(4,10,18,28,\ldots\)?
Explanation opens after your attempt
A. \(n^2+3n\)
Concept
Putting \(n^2+3n\) gives (4,10,18,28). Identify both the square and linear parts.
Why this answer is correct
The correct answer is A. \(n^2+3n\). Putting \(n^2+3n\) gives (4,10,18,28). Identify both the square and linear parts.
Exam Tip
\(n^2+3n\) रखने पर (4,10,18,28) मिलते हैं। वर्ग और रैखिक भाग दोनों पहचानें।
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