अनुक्रम \(3,18,57,132,\ldots\) के लिए सही सामान्य पद कौन-सा है?

Which general term is correct for the sequence \(3,18,57,132,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. \(a_n=2n^3+n\)

Step 1

Concept

\(2n^3+n\) gives (3,18,57,132). In exams test cube-based options with small (n).

Step 2

Why this answer is correct

The correct answer is A. \(a_n=2n^3+n\). \(2n^3+n\) gives (3,18,57,132). In exams test cube-based options with small (n).

Step 3

Exam Tip

\(2n^3+n\) से (3,18,57,132) मिलते हैं। परीक्षा में घन आधारित विकल्पों को छोटे (n) से जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(3,18,57,132,\ldots\) के लिए सही सामान्य पद कौन-सा है? / Which general term is correct for the sequence \(3,18,57,132,\ldots\)?

Correct Answer: A. \(a_n=2n^3+n\). Explanation: \(2n^3+n\) से (3,18,57,132) मिलते हैं। परीक्षा में घन आधारित विकल्पों को छोटे (n) से जाँचें। / \(2n^3+n\) gives (3,18,57,132). In exams test cube-based options with small (n).

Which concept should I revise for this Mathematics MCQ?

\(2n^3+n\) gives (3,18,57,132). In exams test cube-based options with small (n).

What exam hint can help solve this Mathematics question?

\(2n^3+n\) से (3,18,57,132) मिलते हैं। परीक्षा में घन आधारित विकल्पों को छोटे (n) से जाँचें।