अनुक्रम \(2,10,30,68,\ldots\) के लिए सही सामान्य पद कौन-सा है?
Which general term is correct for the sequence \(2,10,30,68,\ldots\)?
Explanation opens after your attempt
A. \(a_n=n^3+n\)
Concept
\(n^3+n\) gives (2,10,30,68). In exams, test the cube-based rule on the first three terms.
Why this answer is correct
The correct answer is A. \(a_n=n^3+n\). \(n^3+n\) gives (2,10,30,68). In exams, test the cube-based rule on the first three terms.
Exam Tip
\(n^3+n\) से (2,10,30,68) मिलते हैं। परीक्षा में घन वाले नियम को पहले तीन पदों पर जाँचें।
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