अनुक्रम \(7,16,31,52,\ldots\) के लिए सही स्पष्ट नियम कौन-सा है?

Which explicit rule is correct for the sequence \(7,16,31,52,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. \(a_n=3n^2+4\)

Step 1

Concept

\(3n^2+4\) gives (7,16,31,52). In exams check a quadratic rule when second differences are constant.

Step 2

Why this answer is correct

The correct answer is C. \(a_n=3n^2+4\). \(3n^2+4\) gives (7,16,31,52). In exams check a quadratic rule when second differences are constant.

Step 3

Exam Tip

\(3n^2+4\) से (7,16,31,52) मिलते हैं। परीक्षा में दूसरे अंतर समान हों तो वर्गीय नियम जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(7,16,31,52,\ldots\) के लिए सही स्पष्ट नियम कौन-सा है? / Which explicit rule is correct for the sequence \(7,16,31,52,\ldots\)?

Correct Answer: C. \(a_n=3n^2+4\). Explanation: \(3n^2+4\) से (7,16,31,52) मिलते हैं। परीक्षा में दूसरे अंतर समान हों तो वर्गीय नियम जाँचें। / \(3n^2+4\) gives (7,16,31,52). In exams check a quadratic rule when second differences are constant.

Which concept should I revise for this Mathematics MCQ?

\(3n^2+4\) gives (7,16,31,52). In exams check a quadratic rule when second differences are constant.

What exam hint can help solve this Mathematics question?

\(3n^2+4\) से (7,16,31,52) मिलते हैं। परीक्षा में दूसरे अंतर समान हों तो वर्गीय नियम जाँचें।