अनुक्रम \(7,11,17,25,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(7,11,17,25,\ldots\)?
Explanation opens after your attempt
A. \(n^2+n+5\)
Concept
Putting \(n^2+n+5\) gives (7,11,17,25). Check the rule on the first few terms.
Why this answer is correct
The correct answer is A. \(n^2+n+5\). Putting \(n^2+n+5\) gives (7,11,17,25). Check the rule on the first few terms.
Exam Tip
\(n^2+n+5\) रखने पर (7,11,17,25) मिलते हैं। पहले कुछ पदों पर नियम जांचें।
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